Finding the Fourth Proportional to 129,733.60, 194,456.40 and 50,821.60
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Solution
The fourth proportional to 129,733.60, 194,456.40 and 50,821.60 is: 76,175.99
Step by Step Solution
- Step 1: Write the proportion equation
129,733.60 : 194,456.40 = 50,821.60 : x - Step 2: Convert to fraction form
129,733.60/194,456.40 = 50,821.60/x - Step 3: Cross multiply
129,733.60x = 194,456.40 × 50,821.60 - Step 4: Simplify right side
129,733.60x = 9,882,585,378.24 - Step 5: Solve for x
x = 9,882,585,378.24/129,733.60 - Step 6: Final answer
x = 76,175.99
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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.