Finding the Fourth Proportional to 129,190.91, 193,703.00 and 61,686.41
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Solution
The fourth proportional to 129,190.91, 193,703.00 and 61,686.41 is: 92,489.80
Step by Step Solution
- Step 1: Write the proportion equation
129,190.91 : 193,703.00 = 61,686.41 : x - Step 2: Convert to fraction form
129,190.91/193,703.00 = 61,686.41/x - Step 3: Cross multiply
129,190.91x = 193,703.00 × 61,686.41 - Step 4: Simplify right side
129,190.91x = 11,948,841,399.28 - Step 5: Solve for x
x = 11,948,841,399.28/129,190.91 - Step 6: Final answer
x = 92,489.80
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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.