Finding the Fourth Proportional to 129,023.13, 193,456.10 and 57,931.96
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Solution
The fourth proportional to 129,023.13, 193,456.10 and 57,931.96 is: 86,862.65
Step by Step Solution
- Step 1: Write the proportion equation
129,023.13 : 193,456.10 = 57,931.96 : x - Step 2: Convert to fraction form
129,023.13/193,456.10 = 57,931.96/x - Step 3: Cross multiply
129,023.13x = 193,456.10 × 57,931.96 - Step 4: Simplify right side
129,023.13x = 11,207,290,745.01 - Step 5: Solve for x
x = 11,207,290,745.01/129,023.13 - Step 6: Final answer
x = 86,862.65
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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.