Finding the Fourth Proportional to 99,446.20, 149,129.70 and 32,867.80
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Solution
The fourth proportional to 99,446.20, 149,129.70 and 32,867.80 is: 49,288.61
Step by Step Solution
- Step 1: Write the proportion equation
99,446.20 : 149,129.70 = 32,867.80 : x - Step 2: Convert to fraction form
99,446.20/149,129.70 = 32,867.80/x - Step 3: Cross multiply
99,446.20x = 149,129.70 × 32,867.80 - Step 4: Simplify right side
99,446.20x = 4,901,565,153.66 - Step 5: Solve for x
x = 4,901,565,153.66/99,446.20 - Step 6: Final answer
x = 49,288.61
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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.