Finding the Fourth Proportional to 129,751.09, 194,604.19 and 58,657.19
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Solution
The fourth proportional to 129,751.09, 194,604.19 and 58,657.19 is: 87,975.64
Step by Step Solution
- Step 1: Write the proportion equation
129,751.09 : 194,604.19 = 58,657.19 : x - Step 2: Convert to fraction form
129,751.09/194,604.19 = 58,657.19/x - Step 3: Cross multiply
129,751.09x = 194,604.19 × 58,657.19 - Step 4: Simplify right side
129,751.09x = 11,414,935,287.49 - Step 5: Solve for x
x = 11,414,935,287.49/129,751.09 - Step 6: Final answer
x = 87,975.64
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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.