Finding the Fourth Proportional to 132,185.62, 182,339.80 and 84,385.09
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Solution
The fourth proportional to 132,185.62, 182,339.80 and 84,385.09 is: 116,402.68
Step by Step Solution
- Step 1: Write the proportion equation
132,185.62 : 182,339.80 = 84,385.09 : x - Step 2: Convert to fraction form
132,185.62/182,339.80 = 84,385.09/x - Step 3: Cross multiply
132,185.62x = 182,339.80 × 84,385.09 - Step 4: Simplify right side
132,185.62x = 15,386,760,433.58 - Step 5: Solve for x
x = 15,386,760,433.58/132,185.62 - Step 6: Final answer
x = 116,402.68
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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.