Finding the Fourth Proportional to 115,869.20, 173,806.84 and 36,983.32
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Solution
The fourth proportional to 115,869.20, 173,806.84 and 36,983.32 is: 55,475.95
Step by Step Solution
- Step 1: Write the proportion equation
115,869.20 : 173,806.84 = 36,983.32 : x - Step 2: Convert to fraction form
115,869.20/173,806.84 = 36,983.32/x - Step 3: Cross multiply
115,869.20x = 173,806.84 × 36,983.32 - Step 4: Simplify right side
115,869.20x = 6,427,953,981.91 - Step 5: Solve for x
x = 6,427,953,981.91/115,869.20 - Step 6: Final answer
x = 55,475.95
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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.