Home / 445,043.38-667,557.78-108,086.80

Finding the Fourth Proportional to 445,043.38, 667,557.78 and 108,086.80

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Solution

The fourth proportional to 445,043.38, 667,557.78 and 108,086.80 is: 162,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,043.38 : 667,557.78 = 108,086.80 : x
  2. Step 2: Convert to fraction form
    445,043.38/667,557.78 = 108,086.80/x
  3. Step 3: Cross multiply
    445,043.38x = 667,557.78 × 108,086.80
  4. Step 4: Simplify right side
    445,043.38x = 72,154,184,255.30
  5. Step 5: Solve for x
    x = 72,154,184,255.30/445,043.38
  6. Step 6: Final answer
    x = 162,128.43

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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.