Finding the Fourth Proportional to 140,902.44, 194,474.01 and 129,553.95
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Solution
The fourth proportional to 140,902.44, 194,474.01 and 129,553.95 is: 178,810.79
Step by Step Solution
- Step 1: Write the proportion equation
140,902.44 : 194,474.01 = 129,553.95 : x - Step 2: Convert to fraction form
140,902.44/194,474.01 = 129,553.95/x - Step 3: Cross multiply
140,902.44x = 194,474.01 × 129,553.95 - Step 4: Simplify right side
140,902.44x = 25,194,876,289.03 - Step 5: Solve for x
x = 25,194,876,289.03/140,902.44 - Step 6: Final answer
x = 178,810.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.