Finding the Fourth Proportional to 156,206.60, 215,566.13 and 84,586.62
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Solution
The fourth proportional to 156,206.60, 215,566.13 and 84,586.62 is: 116,730.09
Step by Step Solution
- Step 1: Write the proportion equation
156,206.60 : 215,566.13 = 84,586.62 : x - Step 2: Convert to fraction form
156,206.60/215,566.13 = 84,586.62/x - Step 3: Cross multiply
156,206.60x = 215,566.13 × 84,586.62 - Step 4: Simplify right side
156,206.60x = 18,234,010,862.10 - Step 5: Solve for x
x = 18,234,010,862.10/156,206.60 - Step 6: Final answer
x = 116,730.09
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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.