Finding the Fourth Proportional to 121,717.67, 182,278.39 and 100,528.07
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Solution
The fourth proportional to 121,717.67, 182,278.39 and 100,528.07 is: 150,545.88
Step by Step Solution
- Step 1: Write the proportion equation
121,717.67 : 182,278.39 = 100,528.07 : x - Step 2: Convert to fraction form
121,717.67/182,278.39 = 100,528.07/x - Step 3: Cross multiply
121,717.67x = 182,278.39 × 100,528.07 - Step 4: Simplify right side
121,717.67x = 18,324,093,586.70 - Step 5: Solve for x
x = 18,324,093,586.70/121,717.67 - Step 6: Final answer
x = 150,545.88
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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.