Home / 198,162.72-297,258.21-79,834.68

Finding the Fourth Proportional to 198,162.72, 297,258.21 and 79,834.68

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Solution

The fourth proportional to 198,162.72, 297,258.21 and 79,834.68 is: 119,757.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,162.72 : 297,258.21 = 79,834.68 : x
  2. Step 2: Convert to fraction form
    198,162.72/297,258.21 = 79,834.68/x
  3. Step 3: Cross multiply
    198,162.72x = 297,258.21 × 79,834.68
  4. Step 4: Simplify right side
    198,162.72x = 23,731,514,072.72
  5. Step 5: Solve for x
    x = 23,731,514,072.72/198,162.72
  6. Step 6: Final answer
    x = 119,757.71

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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.