Finding the Fourth Proportional to 156,463.07, 215,917.86 and 84,842.99
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Solution
The fourth proportional to 156,463.07, 215,917.86 and 84,842.99 is: 117,082.69
Step by Step Solution
- Step 1: Write the proportion equation
156,463.07 : 215,917.86 = 84,842.99 : x - Step 2: Convert to fraction form
156,463.07/215,917.86 = 84,842.99/x - Step 3: Cross multiply
156,463.07x = 215,917.86 × 84,842.99 - Step 4: Simplify right side
156,463.07x = 18,319,116,836.80 - Step 5: Solve for x
x = 18,319,116,836.80/156,463.07 - Step 6: Final answer
x = 117,082.69
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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.