Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number.

18 : 55 :: 28 : 85 :: 36 : ?

109

Logic followed is :

First number × 3 + 1 = Second number

First pair = 18 × 3 + 1 = 54 + 1 = 55

Second pair = 28 × 3 + 1 = 84 + 1 = 85

Third pair = 36 × 3 + 1 = 108 + 1 = 109

Therefore, 109 is correct answer .