Home / 121,180.39-181,853.62-42,294.62

Finding the Fourth Proportional to 121,180.39, 181,853.62 and 42,294.62

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Solution

The fourth proportional to 121,180.39, 181,853.62 and 42,294.62 is: 63,470.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,180.39 : 181,853.62 = 42,294.62 : x
  2. Step 2: Convert to fraction form
    121,180.39/181,853.62 = 42,294.62/x
  3. Step 3: Cross multiply
    121,180.39x = 181,853.62 × 42,294.62
  4. Step 4: Simplify right side
    121,180.39x = 7,691,429,753.52
  5. Step 5: Solve for x
    x = 7,691,429,753.52/121,180.39
  6. Step 6: Final answer
    x = 63,470.91

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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.