Finding the Fourth Proportional to 132,443.24, 198,358.68 and 79,736.54
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Solution
The fourth proportional to 132,443.24, 198,358.68 and 79,736.54 is: 119,420.48
Step by Step Solution
- Step 1: Write the proportion equation
132,443.24 : 198,358.68 = 79,736.54 : x - Step 2: Convert to fraction form
132,443.24/198,358.68 = 79,736.54/x - Step 3: Cross multiply
132,443.24x = 198,358.68 × 79,736.54 - Step 4: Simplify right side
132,443.24x = 15,816,434,822.17 - Step 5: Solve for x
x = 15,816,434,822.17/132,443.24 - Step 6: Final answer
x = 119,420.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.