Home / 125,217.28-172,801.38-68,628.52

Finding the Fourth Proportional to 125,217.28, 172,801.38 and 68,628.52

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Solution

The fourth proportional to 125,217.28, 172,801.38 and 68,628.52 is: 94,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,217.28 : 172,801.38 = 68,628.52 : x
  2. Step 2: Convert to fraction form
    125,217.28/172,801.38 = 68,628.52/x
  3. Step 3: Cross multiply
    125,217.28x = 172,801.38 × 68,628.52
  4. Step 4: Simplify right side
    125,217.28x = 11,859,102,963.36
  5. Step 5: Solve for x
    x = 11,859,102,963.36/125,217.28
  6. Step 6: Final answer
    x = 94,708.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.