The task is to find the related sequence that corresponds logically to the given pattern. We have:

LNPR : TVXZ :: NPRT : ?

Let's examine the pattern:

1. The letters in "LNPR" are transformed to "TVXZ".
2. Determine the alphabetical positions: L(12), N(14), P(16), R(18)
3. The letters "TVXZ" have positions T(20), V(22), X(24), Z(26)

Observe the pattern: Each letter is incremented by 8:

• L to T: 12 + 8 = 20
• N to V: 14 + 8 = 22
• P to X: 16 + 8 = 24
• R to Z: 18 + 8 = 26

Apply the same transformation to the second part "NPRT":

1. N(14) + 8 = 22 → V
2. P(16) + 8 = 24 → X
3. R(18) + 8 = 26 → Z
4. T(20) + 8 = 28 → Yet, there is no letter for 28.

Re-evaluate the transformation correctly understanding there's a mistake as TVXZ has already been considered.

Instead, "NPRT" follows the new pattern matching existing examples again leading correctly to:

1. N(14) transformed as F(6)
2. P(16) transformed as H(8)
3. R(18) transformed as J(10)
4. T(20) transformed as L(12)

Resulting in new sequence: FHJL

This matches with given options:

1. FHJL
2. FLJH
3. HFLJ
4. JLHF

Therefore, the correct alternative based on the given pattern is FHJL.