Finding the Fourth Proportional to 136,757.97, 188,723.52 and 76,327.52
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Solution
The fourth proportional to 136,757.97, 188,723.52 and 76,327.52 is: 105,330.59
Step by Step Solution
- Step 1: Write the proportion equation
136,757.97 : 188,723.52 = 76,327.52 : x - Step 2: Convert to fraction form
136,757.97/188,723.52 = 76,327.52/x - Step 3: Cross multiply
136,757.97x = 188,723.52 × 76,327.52 - Step 4: Simplify right side
136,757.97x = 14,404,797,303.65 - Step 5: Solve for x
x = 14,404,797,303.65/136,757.97 - Step 6: Final answer
x = 105,330.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.