Finding the Fourth Proportional to 129,260.26, 193,892.82 and 40,511.80
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Solution
The fourth proportional to 129,260.26, 193,892.82 and 40,511.80 is: 60,768.46
Step by Step Solution
- Step 1: Write the proportion equation
129,260.26 : 193,892.82 = 40,511.80 : x - Step 2: Convert to fraction form
129,260.26/193,892.82 = 40,511.80/x - Step 3: Cross multiply
129,260.26x = 193,892.82 × 40,511.80 - Step 4: Simplify right side
129,260.26x = 7,854,947,145.28 - Step 5: Solve for x
x = 7,854,947,145.28/129,260.26 - Step 6: Final answer
x = 60,768.46
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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.