Final answer:
The highest point reached by the rocket in relation to sea level is 148 feet.
Step-by-step explanation:
To find the highest point reached by the rocket in relation to sea level, we need to add the height below sea level to the height the rocket soars in the air.
The rocket is launched from a point located 42 feet below sea level, and it soars 190 feet in the air.
So, the highest point reached by the rocket in relation to sea level is 190 + (-42) = 148 feet.