Home / 121,218.23-181,839.68-32,480.71

Finding the Fourth Proportional to 121,218.23, 181,839.68 and 32,480.71

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Solution

The fourth proportional to 121,218.23, 181,839.68 and 32,480.71 is: 48,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,218.23 : 181,839.68 = 32,480.71 : x
  2. Step 2: Convert to fraction form
    121,218.23/181,839.68 = 32,480.71/x
  3. Step 3: Cross multiply
    121,218.23x = 181,839.68 × 32,480.71
  4. Step 4: Simplify right side
    121,218.23x = 5,906,281,912.57
  5. Step 5: Solve for x
    x = 5,906,281,912.57/121,218.23
  6. Step 6: Final answer
    x = 48,724.37

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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.