Finding the Fourth Proportional to 135,934.70, 203,902.05 and 102,757.10
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Solution
The fourth proportional to 135,934.70, 203,902.05 and 102,757.10 is: 154,135.65
Step by Step Solution
- Step 1: Write the proportion equation
135,934.70 : 203,902.05 = 102,757.10 : x - Step 2: Convert to fraction form
135,934.70/203,902.05 = 102,757.10/x - Step 3: Cross multiply
135,934.70x = 203,902.05 × 102,757.10 - Step 4: Simplify right side
135,934.70x = 20,952,383,342.06 - Step 5: Solve for x
x = 20,952,383,342.06/135,934.70 - Step 6: Final answer
x = 154,135.65
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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.