Finding the Fourth Proportional to 107,454.28, 161,279.97 and 57,590.68
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Solution
The fourth proportional to 107,454.28, 161,279.97 and 57,590.68 is: 86,438.84
Step by Step Solution
- Step 1: Write the proportion equation
107,454.28 : 161,279.97 = 57,590.68 : x - Step 2: Convert to fraction form
107,454.28/161,279.97 = 57,590.68/x - Step 3: Cross multiply
107,454.28x = 161,279.97 × 57,590.68 - Step 4: Simplify right side
107,454.28x = 9,288,223,142.68 - Step 5: Solve for x
x = 9,288,223,142.68/107,454.28 - Step 6: Final answer
x = 86,438.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.