Home / 445,158.40-667,731.76-108,198.07

Finding the Fourth Proportional to 445,158.40, 667,731.76 and 108,198.07

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Solution

The fourth proportional to 445,158.40, 667,731.76 and 108,198.07 is: 162,295.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,158.40 : 667,731.76 = 108,198.07 : x
  2. Step 2: Convert to fraction form
    445,158.40/667,731.76 = 108,198.07/x
  3. Step 3: Cross multiply
    445,158.40x = 667,731.76 × 108,198.07
  4. Step 4: Simplify right side
    445,158.40x = 72,247,287,709.70
  5. Step 5: Solve for x
    x = 72,247,287,709.70/445,158.40
  6. Step 6: Final answer
    x = 162,295.69

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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.