Finding the Fourth Proportional to 113,115.90, 169,674.36 and 38,236.44
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Solution
The fourth proportional to 113,115.90, 169,674.36 and 38,236.44 is: 57,354.84
Step by Step Solution
- Step 1: Write the proportion equation
113,115.90 : 169,674.36 = 38,236.44 : x - Step 2: Convert to fraction form
113,115.90/169,674.36 = 38,236.44/x - Step 3: Cross multiply
113,115.90x = 169,674.36 × 38,236.44 - Step 4: Simplify right side
113,115.90x = 6,487,744,193.65 - Step 5: Solve for x
x = 6,487,744,193.65/113,115.90 - Step 6: Final answer
x = 57,354.84
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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.