Finding the Fourth Proportional to 115,411.20, 173,149.20 and 56,248.80
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Solution
The fourth proportional to 115,411.20, 173,149.20 and 56,248.80 is: 84,388.99
Step by Step Solution
- Step 1: Write the proportion equation
115,411.20 : 173,149.20 = 56,248.80 : x - Step 2: Convert to fraction form
115,411.20/173,149.20 = 56,248.80/x - Step 3: Cross multiply
115,411.20x = 173,149.20 × 56,248.80 - Step 4: Simplify right side
115,411.20x = 9,739,434,720.96 - Step 5: Solve for x
x = 9,739,434,720.96/115,411.20 - Step 6: Final answer
x = 84,388.99
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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.