Finding the Fourth Proportional to 156,086.53, 215,400.97 and 84,468.09
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Solution
The fourth proportional to 156,086.53, 215,400.97 and 84,468.09 is: 116,566.81
Step by Step Solution
- Step 1: Write the proportion equation
156,086.53 : 215,400.97 = 84,468.09 : x - Step 2: Convert to fraction form
156,086.53/215,400.97 = 84,468.09/x - Step 3: Cross multiply
156,086.53x = 215,400.97 × 84,468.09 - Step 4: Simplify right side
156,086.53x = 18,194,508,520.05 - Step 5: Solve for x
x = 18,194,508,520.05/156,086.53 - Step 6: Final answer
x = 116,566.81
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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.