Finding the Fourth Proportional to 129,201.66, 193,831.74 and 44,965.80
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Solution
The fourth proportional to 129,201.66, 193,831.74 and 44,965.80 is: 67,458.88
Step by Step Solution
- Step 1: Write the proportion equation
129,201.66 : 193,831.74 = 44,965.80 : x - Step 2: Convert to fraction form
129,201.66/193,831.74 = 44,965.80/x - Step 3: Cross multiply
129,201.66x = 193,831.74 × 44,965.80 - Step 4: Simplify right side
129,201.66x = 8,715,799,254.49 - Step 5: Solve for x
x = 8,715,799,254.49/129,201.66 - Step 6: Final answer
x = 67,458.88
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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.