Finding the Fourth Proportional to 117,687.41, 176,464.66 and 107,645.05
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Solution
The fourth proportional to 117,687.41, 176,464.66 and 107,645.05 is: 161,406.78
Step by Step Solution
- Step 1: Write the proportion equation
117,687.41 : 176,464.66 = 107,645.05 : x - Step 2: Convert to fraction form
117,687.41/176,464.66 = 107,645.05/x - Step 3: Cross multiply
117,687.41x = 176,464.66 × 107,645.05 - Step 4: Simplify right side
117,687.41x = 18,995,545,728.38 - Step 5: Solve for x
x = 18,995,545,728.38/117,687.41 - Step 6: Final answer
x = 161,406.78
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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.