Finding the Fourth Proportional to 113,469.12, 156,584.34 and 63,168.12
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Solution
The fourth proportional to 113,469.12, 156,584.34 and 63,168.12 is: 87,170.31
Step by Step Solution
- Step 1: Write the proportion equation
113,469.12 : 156,584.34 = 63,168.12 : x - Step 2: Convert to fraction form
113,469.12/156,584.34 = 63,168.12/x - Step 3: Cross multiply
113,469.12x = 156,584.34 × 63,168.12 - Step 4: Simplify right side
113,469.12x = 9,891,138,379.24 - Step 5: Solve for x
x = 9,891,138,379.24/113,469.12 - Step 6: Final answer
x = 87,170.31
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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.