Finding the Fourth Proportional to 132,428.75, 182,751.71 and 72,812.75
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Solution
The fourth proportional to 132,428.75, 182,751.71 and 72,812.75 is: 100,481.61
Step by Step Solution
- Step 1: Write the proportion equation
132,428.75 : 182,751.71 = 72,812.75 : x - Step 2: Convert to fraction form
132,428.75/182,751.71 = 72,812.75/x - Step 3: Cross multiply
132,428.75x = 182,751.71 × 72,812.75 - Step 4: Simplify right side
132,428.75x = 13,306,654,208.24 - Step 5: Solve for x
x = 13,306,654,208.24/132,428.75 - Step 6: Final answer
x = 100,481.61
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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.