Finding the Fourth Proportional to 82,138.18, 123,220.56 and 32,191.19
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Solution
The fourth proportional to 82,138.18, 123,220.56 and 32,191.19 is: 48,291.99
Step by Step Solution
- Step 1: Write the proportion equation
82,138.18 : 123,220.56 = 32,191.19 : x - Step 2: Convert to fraction form
82,138.18/123,220.56 = 32,191.19/x - Step 3: Cross multiply
82,138.18x = 123,220.56 × 32,191.19 - Step 4: Simplify right side
82,138.18x = 3,966,616,458.87 - Step 5: Solve for x
x = 3,966,616,458.87/82,138.18 - Step 6: Final answer
x = 48,291.99
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1.5x scale
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.