Finding the Fourth Proportional to 129,161.92, 193,831.06 and 44,921.26
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Solution
The fourth proportional to 129,161.92, 193,831.06 and 44,921.26 is: 67,412.56
Step by Step Solution
- Step 1: Write the proportion equation
129,161.92 : 193,831.06 = 44,921.26 : x - Step 2: Convert to fraction form
129,161.92/193,831.06 = 44,921.26/x - Step 3: Cross multiply
129,161.92x = 193,831.06 × 44,921.26 - Step 4: Simplify right side
129,161.92x = 8,707,135,442.34 - Step 5: Solve for x
x = 8,707,135,442.34/129,161.92 - Step 6: Final answer
x = 67,412.56
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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.