Home / 121,180.28-181,853.45-42,294.50

Finding the Fourth Proportional to 121,180.28, 181,853.45 and 42,294.50

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Solution

The fourth proportional to 121,180.28, 181,853.45 and 42,294.50 is: 63,470.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,180.28 : 181,853.45 = 42,294.50 : x
  2. Step 2: Convert to fraction form
    121,180.28/181,853.45 = 42,294.50/x
  3. Step 3: Cross multiply
    121,180.28x = 181,853.45 × 42,294.50
  4. Step 4: Simplify right side
    121,180.28x = 7,691,399,620.29
  5. Step 5: Solve for x
    x = 7,691,399,620.29/121,180.28
  6. Step 6: Final answer
    x = 63,470.72

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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.