Finding the Fourth Proportional to 156,757.28, 216,330.15 and 88,772.79
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Solution
The fourth proportional to 156,757.28, 216,330.15 and 88,772.79 is: 122,509.34
Step by Step Solution
- Step 1: Write the proportion equation
156,757.28 : 216,330.15 = 88,772.79 : x - Step 2: Convert to fraction form
156,757.28/216,330.15 = 88,772.79/x - Step 3: Cross multiply
156,757.28x = 216,330.15 × 88,772.79 - Step 4: Simplify right side
156,757.28x = 19,204,231,309.52 - Step 5: Solve for x
x = 19,204,231,309.52/156,757.28 - Step 6: Final answer
x = 122,509.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.