Home / 219,775.20-329,772.15-125,078.10

Finding the Fourth Proportional to 219,775.20, 329,772.15 and 125,078.10

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Solution

The fourth proportional to 219,775.20, 329,772.15 and 125,078.10 is: 187,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,775.20 : 329,772.15 = 125,078.10 : x
  2. Step 2: Convert to fraction form
    219,775.20/329,772.15 = 125,078.10/x
  3. Step 3: Cross multiply
    219,775.20x = 329,772.15 × 125,078.10
  4. Step 4: Simplify right side
    219,775.20x = 41,247,273,954.92
  5. Step 5: Solve for x
    x = 41,247,273,954.92/219,775.20
  6. Step 6: Final answer
    x = 187,679.38

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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.