Finding the Fourth Proportional to 126,122.06, 189,177.61 and 31,350.23
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Solution
The fourth proportional to 126,122.06, 189,177.61 and 31,350.23 is: 47,023.99
Step by Step Solution
- Step 1: Write the proportion equation
126,122.06 : 189,177.61 = 31,350.23 : x - Step 2: Convert to fraction form
126,122.06/189,177.61 = 31,350.23/x - Step 3: Cross multiply
126,122.06x = 189,177.61 × 31,350.23 - Step 4: Simplify right side
126,122.06x = 5,930,761,978.92 - Step 5: Solve for x
x = 5,930,761,978.92/126,122.06 - Step 6: Final answer
x = 47,023.99
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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.