Home / 179,109.20-268,836.60-90,462.80

Finding the Fourth Proportional to 179,109.20, 268,836.60 and 90,462.80

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Solution

The fourth proportional to 179,109.20, 268,836.60 and 90,462.80 is: 135,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,109.20 : 268,836.60 = 90,462.80 : x
  2. Step 2: Convert to fraction form
    179,109.20/268,836.60 = 90,462.80/x
  3. Step 3: Cross multiply
    179,109.20x = 268,836.60 × 90,462.80
  4. Step 4: Simplify right side
    179,109.20x = 24,319,711,578.48
  5. Step 5: Solve for x
    x = 24,319,711,578.48/179,109.20
  6. Step 6: Final answer
    x = 135,781.48

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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.