Home / 170,786.20-256,179.30-87,842.20

Finding the Fourth Proportional to 170,786.20, 256,179.30 and 87,842.20

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Solution

The fourth proportional to 170,786.20, 256,179.30 and 87,842.20 is: 131,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,786.20 : 256,179.30 = 87,842.20 : x
  2. Step 2: Convert to fraction form
    170,786.20/256,179.30 = 87,842.20/x
  3. Step 3: Cross multiply
    170,786.20x = 256,179.30 × 87,842.20
  4. Step 4: Simplify right side
    170,786.20x = 22,503,353,306.46
  5. Step 5: Solve for x
    x = 22,503,353,306.46/170,786.20
  6. Step 6: Final answer
    x = 131,763.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.