Finding the Fourth Proportional to 156,226.12, 215,590.88 and 84,604.48
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Solution
The fourth proportional to 156,226.12, 215,590.88 and 84,604.48 is: 116,753.55
Step by Step Solution
- Step 1: Write the proportion equation
156,226.12 : 215,590.88 = 84,604.48 : x - Step 2: Convert to fraction form
156,226.12/215,590.88 = 84,604.48/x - Step 3: Cross multiply
156,226.12x = 215,590.88 × 84,604.48 - Step 4: Simplify right side
156,226.12x = 18,239,954,295.14 - Step 5: Solve for x
x = 18,239,954,295.14/156,226.12 - Step 6: Final answer
x = 116,753.55
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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.