Home / 445,119.78-667,680.50-108,160.71

Finding the Fourth Proportional to 445,119.78, 667,680.50 and 108,160.71

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Solution

The fourth proportional to 445,119.78, 667,680.50 and 108,160.71 is: 162,241.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,119.78 : 667,680.50 = 108,160.71 : x
  2. Step 2: Convert to fraction form
    445,119.78/667,680.50 = 108,160.71/x
  3. Step 3: Cross multiply
    445,119.78x = 667,680.50 × 108,160.71
  4. Step 4: Simplify right side
    445,119.78x = 72,216,796,933.16
  5. Step 5: Solve for x
    x = 72,216,796,933.16/445,119.78
  6. Step 6: Final answer
    x = 162,241.27

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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.