Finding the Fourth Proportional to 126,500.99, 189,778.80 and 47,614.98
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Solution
The fourth proportional to 126,500.99, 189,778.80 and 47,614.98 is: 71,432.75
Step by Step Solution
- Step 1: Write the proportion equation
126,500.99 : 189,778.80 = 47,614.98 : x - Step 2: Convert to fraction form
126,500.99/189,778.80 = 47,614.98/x - Step 3: Cross multiply
126,500.99x = 189,778.80 × 47,614.98 - Step 4: Simplify right side
126,500.99x = 9,036,313,766.42 - Step 5: Solve for x
x = 9,036,313,766.42/126,500.99 - Step 6: Final answer
x = 71,432.75
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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.