Home / 187,273.20-280,778.52-68,929.20

Finding the Fourth Proportional to 187,273.20, 280,778.52 and 68,929.20

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Solution

The fourth proportional to 187,273.20, 280,778.52 and 68,929.20 is: 103,345.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,273.20 : 280,778.52 = 68,929.20 : x
  2. Step 2: Convert to fraction form
    187,273.20/280,778.52 = 68,929.20/x
  3. Step 3: Cross multiply
    187,273.20x = 280,778.52 × 68,929.20
  4. Step 4: Simplify right side
    187,273.20x = 19,353,838,760.78
  5. Step 5: Solve for x
    x = 19,353,838,760.78/187,273.20
  6. Step 6: Final answer
    x = 103,345.48

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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.