Finding the Fourth Proportional to 136,144.71, 204,217.16 and 42,657.75
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Solution
The fourth proportional to 136,144.71, 204,217.16 and 42,657.75 is: 63,986.65
Step by Step Solution
- Step 1: Write the proportion equation
136,144.71 : 204,217.16 = 42,657.75 : x - Step 2: Convert to fraction form
136,144.71/204,217.16 = 42,657.75/x - Step 3: Cross multiply
136,144.71x = 204,217.16 × 42,657.75 - Step 4: Simplify right side
136,144.71x = 8,711,444,343.70 - Step 5: Solve for x
x = 8,711,444,343.70/136,144.71 - Step 6: Final answer
x = 63,986.65
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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.