Finding the Fourth Proportional to 102,517.48, 141,475.14 and 57,195.08
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Solution
The fourth proportional to 102,517.48, 141,475.14 and 57,195.08 is: 78,929.78
Step by Step Solution
- Step 1: Write the proportion equation
102,517.48 : 141,475.14 = 57,195.08 : x - Step 2: Convert to fraction form
102,517.48/141,475.14 = 57,195.08/x - Step 3: Cross multiply
102,517.48x = 141,475.14 × 57,195.08 - Step 4: Simplify right side
102,517.48x = 8,091,681,950.31 - Step 5: Solve for x
x = 8,091,681,950.31/102,517.48 - Step 6: Final answer
x = 78,929.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.