Finding the Fourth Proportional to 156,076.68, 215,385.48 and 84,456.68
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Solution
The fourth proportional to 156,076.68, 215,385.48 and 84,456.68 is: 116,550.03
Step by Step Solution
- Step 1: Write the proportion equation
156,076.68 : 215,385.48 = 84,456.68 : x - Step 2: Convert to fraction form
156,076.68/215,385.48 = 84,456.68/x - Step 3: Cross multiply
156,076.68x = 215,385.48 × 84,456.68 - Step 4: Simplify right side
156,076.68x = 18,190,741,484.08 - Step 5: Solve for x
x = 18,190,741,484.08/156,076.68 - Step 6: Final answer
x = 116,550.03
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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.