Finding the Fourth Proportional to 141,156.25, 194,770.47 and 79,902.13
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Solution
The fourth proportional to 141,156.25, 194,770.47 and 79,902.13 is: 110,250.70
Step by Step Solution
- Step 1: Write the proportion equation
141,156.25 : 194,770.47 = 79,902.13 : x - Step 2: Convert to fraction form
141,156.25/194,770.47 = 79,902.13/x - Step 3: Cross multiply
141,156.25x = 194,770.47 × 79,902.13 - Step 4: Simplify right side
141,156.25x = 15,562,575,414.10 - Step 5: Solve for x
x = 15,562,575,414.10/141,156.25 - Step 6: Final answer
x = 110,250.70
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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.