Finding the Fourth Proportional to 210,793.62, 316,190.97 and 86,134.62
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Solution
The fourth proportional to 210,793.62, 316,190.97 and 86,134.62 is: 129,202.15
Step by Step Solution
- Step 1: Write the proportion equation
210,793.62 : 316,190.97 = 86,134.62 : x - Step 2: Convert to fraction form
210,793.62/316,190.97 = 86,134.62/x - Step 3: Cross multiply
210,793.62x = 316,190.97 × 86,134.62 - Step 4: Simplify right side
210,793.62x = 27,234,989,048.38 - Step 5: Solve for x
x = 27,234,989,048.38/210,793.62 - Step 6: Final answer
x = 129,202.15
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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.