Finding the Fourth Proportional to 107,475.87, 161,215.35 and 40,919.65
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Solution
The fourth proportional to 107,475.87, 161,215.35 and 40,919.65 is: 61,380.07
Step by Step Solution
- Step 1: Write the proportion equation
107,475.87 : 161,215.35 = 40,919.65 : x - Step 2: Convert to fraction form
107,475.87/161,215.35 = 40,919.65/x - Step 3: Cross multiply
107,475.87x = 161,215.35 × 40,919.65 - Step 4: Simplify right side
107,475.87x = 6,596,876,046.98 - Step 5: Solve for x
x = 6,596,876,046.98/107,475.87 - Step 6: Final answer
x = 61,380.07
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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.