Finding the Fourth Proportional to 132,408.63, 198,613.04 and 38,979.99
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Solution
The fourth proportional to 132,408.63, 198,613.04 and 38,979.99 is: 58,470.01
Step by Step Solution
- Step 1: Write the proportion equation
132,408.63 : 198,613.04 = 38,979.99 : x - Step 2: Convert to fraction form
132,408.63/198,613.04 = 38,979.99/x - Step 3: Cross multiply
132,408.63x = 198,613.04 × 38,979.99 - Step 4: Simplify right side
132,408.63x = 7,741,934,118.17 - Step 5: Solve for x
x = 7,741,934,118.17/132,408.63 - Step 6: Final answer
x = 58,470.01
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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.