Finding the Fourth Proportional to 157,360.08, 235,729.08 and 74,312.40
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Solution
The fourth proportional to 157,360.08, 235,729.08 and 74,312.40 is: 111,321.71
Step by Step Solution
- Step 1: Write the proportion equation
157,360.08 : 235,729.08 = 74,312.40 : x - Step 2: Convert to fraction form
157,360.08/235,729.08 = 74,312.40/x - Step 3: Cross multiply
157,360.08x = 235,729.08 × 74,312.40 - Step 4: Simplify right side
157,360.08x = 17,517,593,684.59 - Step 5: Solve for x
x = 17,517,593,684.59/157,360.08 - Step 6: Final answer
x = 111,321.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.