Finding the Fourth Proportional to 121,592.07, 182,418.68 and 86,122.84
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Solution
The fourth proportional to 121,592.07, 182,418.68 and 86,122.84 is: 129,205.92
Step by Step Solution
- Step 1: Write the proportion equation
121,592.07 : 182,418.68 = 86,122.84 : x - Step 2: Convert to fraction form
121,592.07/182,418.68 = 86,122.84/x - Step 3: Cross multiply
121,592.07x = 182,418.68 × 86,122.84 - Step 4: Simplify right side
121,592.07x = 15,710,414,790.65 - Step 5: Solve for x
x = 15,710,414,790.65/121,592.07 - Step 6: Final answer
x = 129,205.92
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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.