Home / 121,727.76-182,589.20-55,155.48

Finding the Fourth Proportional to 121,727.76, 182,589.20 and 55,155.48

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Solution

The fourth proportional to 121,727.76, 182,589.20 and 55,155.48 is: 82,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,727.76 : 182,589.20 = 55,155.48 : x
  2. Step 2: Convert to fraction form
    121,727.76/182,589.20 = 55,155.48/x
  3. Step 3: Cross multiply
    121,727.76x = 182,589.20 × 55,155.48
  4. Step 4: Simplify right side
    121,727.76x = 10,070,794,968.82
  5. Step 5: Solve for x
    x = 10,070,794,968.82/121,727.76
  6. Step 6: Final answer
    x = 82,732.11

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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.