Finding the Fourth Proportional to 156,379.26, 215,802.14 and 84,757.44
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Solution
The fourth proportional to 156,379.26, 215,802.14 and 84,757.44 is: 116,964.60
Step by Step Solution
- Step 1: Write the proportion equation
156,379.26 : 215,802.14 = 84,757.44 : x - Step 2: Convert to fraction form
156,379.26/215,802.14 = 84,757.44/x - Step 3: Cross multiply
156,379.26x = 215,802.14 × 84,757.44 - Step 4: Simplify right side
156,379.26x = 18,290,836,932.92 - Step 5: Solve for x
x = 18,290,836,932.92/156,379.26 - Step 6: Final answer
x = 116,964.60
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1.5x scale
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.