Finding the Fourth Proportional to 156,691.12, 235,116.84 and 74,625.23
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Solution
The fourth proportional to 156,691.12, 235,116.84 and 74,625.23 is: 111,976.02
Step by Step Solution
- Step 1: Write the proportion equation
156,691.12 : 235,116.84 = 74,625.23 : x - Step 2: Convert to fraction form
156,691.12/235,116.84 = 74,625.23/x - Step 3: Cross multiply
156,691.12x = 235,116.84 × 74,625.23 - Step 4: Simplify right side
156,691.12x = 17,545,647,487.52 - Step 5: Solve for x
x = 17,545,647,487.52/156,691.12 - Step 6: Final answer
x = 111,976.02
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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.