Finding the Fourth Proportional to 100.51, 150.59 and 70.00

Step by Step Solution

1. Step 1: Write the proportion equation
   100.51 : 150.59 = 70.00 : x
2. Step 2: Convert to fraction form
   100.51/150.59 = 70.00/x
3. Step 3: Cross multiply
   100.51x = 150.59 × 70.00
4. Step 4: Simplify right side
   100.51x = 10,541.10
5. Step 5: Solve for x
   x = 10,541.10/100.51
6. Step 6: Final answer
   x = 104.88