Question #dfab3

1 Answer
Dec 14, 2017

It is 51.

Explanation:

This is a classic algebra question.

First, define the variables: Let x be the first number, let x + 1 be the second number, let x+2 be the third number, and let x + 3 be the fourth number

(Since they are consecutive, meaning that they follow one another. For example, 1, 2, and 3 are consecutive).

Secondly, make the equation. Since the 4 numbers sum to 198,

x + x +1 + x + 2 + x + 3 = 198

Third, solve the equation:

4x + 6 = 198

4x + 6 - 6 = 198 -6

4x = 192

(4x)/4 = 192/4

x = 48

Finally, answer the question: x + 3 is the fourth number in the sequence (from above)

x + 3

= 48 + 3

= 51

Therefore, the fourth number in the sequence is 51.