Finding the Fourth Proportional to 119,864.65, 165,475.39 and 87,562.99
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Solution
The fourth proportional to 119,864.65, 165,475.39 and 87,562.99 is: 120,882.34
Step by Step Solution
- Step 1: Write the proportion equation
119,864.65 : 165,475.39 = 87,562.99 : x - Step 2: Convert to fraction form
119,864.65/165,475.39 = 87,562.99/x - Step 3: Cross multiply
119,864.65x = 165,475.39 × 87,562.99 - Step 4: Simplify right side
119,864.65x = 14,489,519,919.82 - Step 5: Solve for x
x = 14,489,519,919.82/119,864.65 - Step 6: Final answer
x = 120,882.34
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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.