Finding the Fourth Proportional to 115,463.24, 173,249.90 and 79,979.24
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Solution
The fourth proportional to 115,463.24, 173,249.90 and 79,979.24 is: 120,006.99
Step by Step Solution
- Step 1: Write the proportion equation
115,463.24 : 173,249.90 = 79,979.24 : x - Step 2: Convert to fraction form
115,463.24/173,249.90 = 79,979.24/x - Step 3: Cross multiply
115,463.24x = 173,249.90 × 79,979.24 - Step 4: Simplify right side
115,463.24x = 13,856,395,332.08 - Step 5: Solve for x
x = 13,856,395,332.08/115,463.24 - Step 6: Final answer
x = 120,006.99
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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.