Finding the Fourth Proportional to 156,213.81, 215,575.26 and 84,593.94
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Solution
The fourth proportional to 156,213.81, 215,575.26 and 84,593.94 is: 116,739.75
Step by Step Solution
- Step 1: Write the proportion equation
156,213.81 : 215,575.26 = 84,593.94 : x - Step 2: Convert to fraction form
156,213.81/215,575.26 = 84,593.94/x - Step 3: Cross multiply
156,213.81x = 215,575.26 × 84,593.94 - Step 4: Simplify right side
156,213.81x = 18,236,360,609.92 - Step 5: Solve for x
x = 18,236,360,609.92/156,213.81 - Step 6: Final answer
x = 116,739.75
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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.