Finding the Fourth Proportional to 132,586.18, 182,971.68 and 72,160.18
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Solution
The fourth proportional to 132,586.18, 182,971.68 and 72,160.18 is: 99,582.55
Step by Step Solution
- Step 1: Write the proportion equation
132,586.18 : 182,971.68 = 72,160.18 : x - Step 2: Convert to fraction form
132,586.18/182,971.68 = 72,160.18/x - Step 3: Cross multiply
132,586.18x = 182,971.68 × 72,160.18 - Step 4: Simplify right side
132,586.18x = 13,203,269,363.70 - Step 5: Solve for x
x = 13,203,269,363.70/132,586.18 - Step 6: Final answer
x = 99,582.55
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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.