Finding the Fourth Proportional to 129,351.92, 193,626.88 and 70,040.48
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Solution
The fourth proportional to 129,351.92, 193,626.88 and 70,040.48 is: 104,843.59
Step by Step Solution
- Step 1: Write the proportion equation
129,351.92 : 193,626.88 = 70,040.48 : x - Step 2: Convert to fraction form
129,351.92/193,626.88 = 70,040.48/x - Step 3: Cross multiply
129,351.92x = 193,626.88 × 70,040.48 - Step 4: Simplify right side
129,351.92x = 13,561,719,616.10 - Step 5: Solve for x
x = 13,561,719,616.10/129,351.92 - Step 6: Final answer
x = 104,843.59
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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.