Finding the Fourth Proportional to 125,229.99, 187,866.87 and 55,107.48
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Solution
The fourth proportional to 125,229.99, 187,866.87 and 55,107.48 is: 82,670.85
Step by Step Solution
- Step 1: Write the proportion equation
125,229.99 : 187,866.87 = 55,107.48 : x - Step 2: Convert to fraction form
125,229.99/187,866.87 = 55,107.48/x - Step 3: Cross multiply
125,229.99x = 187,866.87 × 55,107.48 - Step 4: Simplify right side
125,229.99x = 10,352,869,781.19 - Step 5: Solve for x
x = 10,352,869,781.19/125,229.99 - Step 6: Final answer
x = 82,670.85
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1.5x scale
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.