To find the answer, you need to determine what the difference is. In this case, the difference is 6.
134 - 128 = 6
140 - 134 = 6
146 - 140 = 6
152 - 146 = 6
So, to find the answer you would add 6 to the next set of numbers to continue the pattern. For example -
152 + 6 = 158
158 + 6 = 164