Finding the Fourth Proportional to 132,143.91, 182,359.95 and 71,715.09
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Solution
The fourth proportional to 132,143.91, 182,359.95 and 71,715.09 is: 98,967.56
Step by Step Solution
- Step 1: Write the proportion equation
132,143.91 : 182,359.95 = 71,715.09 : x - Step 2: Convert to fraction form
132,143.91/182,359.95 = 71,715.09/x - Step 3: Cross multiply
132,143.91x = 182,359.95 × 71,715.09 - Step 4: Simplify right side
132,143.91x = 13,077,960,226.65 - Step 5: Solve for x
x = 13,077,960,226.65/132,143.91 - Step 6: Final answer
x = 98,967.56
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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.