Finding the Fourth Proportional to 136,049.76, 203,866.92 and 57,121.08
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Solution
The fourth proportional to 136,049.76, 203,866.92 and 57,121.08 is: 85,594.41
Step by Step Solution
- Step 1: Write the proportion equation
136,049.76 : 203,866.92 = 57,121.08 : x - Step 2: Convert to fraction form
136,049.76/203,866.92 = 57,121.08/x - Step 3: Cross multiply
136,049.76x = 203,866.92 × 57,121.08 - Step 4: Simplify right side
136,049.76x = 11,645,098,646.67 - Step 5: Solve for x
x = 11,645,098,646.67/136,049.76 - Step 6: Final answer
x = 85,594.41
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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.