Finding the Fourth Proportional to 121,831.66, 182,558.67 and 84,464.38
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Solution
The fourth proportional to 121,831.66, 182,558.67 and 84,464.38 is: 126,565.66
Step by Step Solution
- Step 1: Write the proportion equation
121,831.66 : 182,558.67 = 84,464.38 : x - Step 2: Convert to fraction form
121,831.66/182,558.67 = 84,464.38/x - Step 3: Cross multiply
121,831.66x = 182,558.67 × 84,464.38 - Step 4: Simplify right side
121,831.66x = 15,419,704,875.17 - Step 5: Solve for x
x = 15,419,704,875.17/121,831.66 - Step 6: Final answer
x = 126,565.66
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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.