Finding the Fourth Proportional to 129,251.30, 193,876.98 and 40,511.68
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Solution
The fourth proportional to 129,251.30, 193,876.98 and 40,511.68 is: 60,767.53
Step by Step Solution
- Step 1: Write the proportion equation
129,251.30 : 193,876.98 = 40,511.68 : x - Step 2: Convert to fraction form
129,251.30/193,876.98 = 40,511.68/x - Step 3: Cross multiply
129,251.30x = 193,876.98 × 40,511.68 - Step 4: Simplify right side
129,251.30x = 7,854,282,173.13 - Step 5: Solve for x
x = 7,854,282,173.13/129,251.30 - Step 6: Final answer
x = 60,767.53
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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.