Finding the Fourth Proportional to 113,723.32, 170,446.59 and 80,452.99
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Solution
The fourth proportional to 113,723.32, 170,446.59 and 80,452.99 is: 120,581.58
Step by Step Solution
- Step 1: Write the proportion equation
113,723.32 : 170,446.59 = 80,452.99 : x - Step 2: Convert to fraction form
113,723.32/170,446.59 = 80,452.99/x - Step 3: Cross multiply
113,723.32x = 170,446.59 × 80,452.99 - Step 4: Simplify right side
113,723.32x = 13,712,937,800.80 - Step 5: Solve for x
x = 13,712,937,800.80/113,723.32 - Step 6: Final answer
x = 120,581.58
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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.