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Finding the Fourth Proportional to 125,218.59, 172,801.29 and 67,859.49

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Solution

The fourth proportional to 125,218.59, 172,801.29 and 67,859.49 is: 93,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,218.59 : 172,801.29 = 67,859.49 : x
  2. Step 2: Convert to fraction form
    125,218.59/172,801.29 = 67,859.49/x
  3. Step 3: Cross multiply
    125,218.59x = 172,801.29 × 67,859.49
  4. Step 4: Simplify right side
    125,218.59x = 11,726,207,410.74
  5. Step 5: Solve for x
    x = 11,726,207,410.74/125,218.59
  6. Step 6: Final answer
    x = 93,645.90

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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.