Home / 445,324.32-667,987.85-108,365.03

Finding the Fourth Proportional to 445,324.32, 667,987.85 and 108,365.03

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Solution

The fourth proportional to 445,324.32, 667,987.85 and 108,365.03 is: 162,547.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,324.32 : 667,987.85 = 108,365.03 : x
  2. Step 2: Convert to fraction form
    445,324.32/667,987.85 = 108,365.03/x
  3. Step 3: Cross multiply
    445,324.32x = 667,987.85 × 108,365.03
  4. Step 4: Simplify right side
    445,324.32x = 72,386,523,404.89
  5. Step 5: Solve for x
    x = 72,386,523,404.89/445,324.32
  6. Step 6: Final answer
    x = 162,547.88

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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.