Choose the option in which the relationship among the numbers is the same as in the given group of numbers:

Given set: (26, 144, 18)

Find the relation:

First number $-$ Third number

$26 - 18 = 8$

Now multiply with third number:

$18 \times 8 = 144$

So the pattern is:

Second number $=$ Third number $\times$ (First number $-$ Third number)

Now check options:

1. (18, 120, 13)
   $18 - 13 = 5$

$13 \times 5 = 65 \neq 120$ ❌

2. (28, 190, 16)
   $28 - 16 = 12$

$16 \times 12 = 192 \neq 190$ ❌

3. (21, 108, 12)
   $21 - 12 = 9$

$12 \times 9 = 108$ ✅

4. (31, 196, 24)
   $31 - 24 = 7$

$24 \times 7 = 168 \neq 196$ ❌

Correct Answer: (21, 108, 12)