Finding the Fourth Proportional to 132,389.84, 182,699.19 and 71,960.62
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Solution
The fourth proportional to 132,389.84, 182,699.19 and 71,960.62 is: 99,306.31
Step by Step Solution
- Step 1: Write the proportion equation
132,389.84 : 182,699.19 = 71,960.62 : x - Step 2: Convert to fraction form
132,389.84/182,699.19 = 71,960.62/x - Step 3: Cross multiply
132,389.84x = 182,699.19 × 71,960.62 - Step 4: Simplify right side
132,389.84x = 13,147,146,529.15 - Step 5: Solve for x
x = 13,147,146,529.15/132,389.84 - Step 6: Final answer
x = 99,306.31
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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.