Home / 445,320.72-667,971.32-108,363.60

Finding the Fourth Proportional to 445,320.72, 667,971.32 and 108,363.60

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Solution

The fourth proportional to 445,320.72, 667,971.32 and 108,363.60 is: 162,543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,320.72 : 667,971.32 = 108,363.60 : x
  2. Step 2: Convert to fraction form
    445,320.72/667,971.32 = 108,363.60/x
  3. Step 3: Cross multiply
    445,320.72x = 667,971.32 × 108,363.60
  4. Step 4: Simplify right side
    445,320.72x = 72,383,776,390.13
  5. Step 5: Solve for x
    x = 72,383,776,390.13/445,320.72
  6. Step 6: Final answer
    x = 162,543.02

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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.