Home / 125,245.20-172,839.78-71,537.34

Finding the Fourth Proportional to 125,245.20, 172,839.78 and 71,537.34

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Solution

The fourth proportional to 125,245.20, 172,839.78 and 71,537.34 is: 98,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,245.20 : 172,839.78 = 71,537.34 : x
  2. Step 2: Convert to fraction form
    125,245.20/172,839.78 = 71,537.34/x
  3. Step 3: Cross multiply
    125,245.20x = 172,839.78 × 71,537.34
  4. Step 4: Simplify right side
    125,245.20x = 12,364,498,107.39
  5. Step 5: Solve for x
    x = 12,364,498,107.39/125,245.20
  6. Step 6: Final answer
    x = 98,722.33

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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.