Home / 80,176.62-120,306.40-58,171.62

Finding the Fourth Proportional to 80,176.62, 120,306.40 and 58,171.62

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Solution

The fourth proportional to 80,176.62, 120,306.40 and 58,171.62 is: 87,287.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,176.62 : 120,306.40 = 58,171.62 : x
  2. Step 2: Convert to fraction form
    80,176.62/120,306.40 = 58,171.62/x
  3. Step 3: Cross multiply
    80,176.62x = 120,306.40 × 58,171.62
  4. Step 4: Simplify right side
    80,176.62x = 6,998,418,184.37
  5. Step 5: Solve for x
    x = 6,998,418,184.37/80,176.62
  6. Step 6: Final answer
    x = 87,287.52

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1.5x scale

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.