Finding the Fourth Proportional to 97,680.20, 146,520.30 and 86,793.80
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Solution
The fourth proportional to 97,680.20, 146,520.30 and 86,793.80 is: 130,190.70
Step by Step Solution
- Step 1: Write the proportion equation
97,680.20 : 146,520.30 = 86,793.80 : x - Step 2: Convert to fraction form
97,680.20/146,520.30 = 86,793.80/x - Step 3: Cross multiply
97,680.20x = 146,520.30 × 86,793.80 - Step 4: Simplify right side
97,680.20x = 12,717,053,614.14 - Step 5: Solve for x
x = 12,717,053,614.14/97,680.20 - Step 6: Final answer
x = 130,190.70
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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.