Finding the Fourth Proportional to 192,780.05, 289,123.49 and 74,375.87
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Solution
The fourth proportional to 192,780.05, 289,123.49 and 74,375.87 is: 111,545.83
Step by Step Solution
- Step 1: Write the proportion equation
192,780.05 : 289,123.49 = 74,375.87 : x - Step 2: Convert to fraction form
192,780.05/289,123.49 = 74,375.87/x - Step 3: Cross multiply
192,780.05x = 289,123.49 × 74,375.87 - Step 4: Simplify right side
192,780.05x = 21,503,809,846.51 - Step 5: Solve for x
x = 21,503,809,846.51/192,780.05 - Step 6: Final answer
x = 111,545.83
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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.