Home / 125,216.28-172,800-68,627.52

Finding the Fourth Proportional to 125,216.28, 172,800 and 68,627.52

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Solution

The fourth proportional to 125,216.28, 172,800 and 68,627.52 is: 94,706.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,216.28 : 172,800 = 68,627.52 : x
  2. Step 2: Convert to fraction form
    125,216.28/172,800 = 68,627.52/x
  3. Step 3: Cross multiply
    125,216.28x = 172,800 × 68,627.52
  4. Step 4: Simplify right side
    125,216.28x = 11,858,835,456
  5. Step 5: Solve for x
    x = 11,858,835,456/125,216.28
  6. Step 6: Final answer
    x = 94,706.82

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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.