Finding the Fourth Proportional to 128,470.59, 192,658.01 and 44,207.19
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Solution
The fourth proportional to 128,470.59, 192,658.01 and 44,207.19 is: 66,294.31
Step by Step Solution
- Step 1: Write the proportion equation
128,470.59 : 192,658.01 = 44,207.19 : x - Step 2: Convert to fraction form
128,470.59/192,658.01 = 44,207.19/x - Step 3: Cross multiply
128,470.59x = 192,658.01 × 44,207.19 - Step 4: Simplify right side
128,470.59x = 8,516,869,032.06 - Step 5: Solve for x
x = 8,516,869,032.06/128,470.59 - Step 6: Final answer
x = 66,294.31
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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.