Home / 125,220.38-172,815.06-68,642.69

Finding the Fourth Proportional to 125,220.38, 172,815.06 and 68,642.69

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Solution

The fourth proportional to 125,220.38, 172,815.06 and 68,642.69 is: 94,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,220.38 : 172,815.06 = 68,642.69 : x
  2. Step 2: Convert to fraction form
    125,220.38/172,815.06 = 68,642.69/x
  3. Step 3: Cross multiply
    125,220.38x = 172,815.06 × 68,642.69
  4. Step 4: Simplify right side
    125,220.38x = 11,862,489,726.84
  5. Step 5: Solve for x
    x = 11,862,489,726.84/125,220.38
  6. Step 6: Final answer
    x = 94,732.90

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1.5x scale

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.