Home / 269,693.42-404,605.99-89,778.49

Finding the Fourth Proportional to 269,693.42, 404,605.99 and 89,778.49

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Solution

The fourth proportional to 269,693.42, 404,605.99 and 89,778.49 is: 134,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,693.42 : 404,605.99 = 89,778.49 : x
  2. Step 2: Convert to fraction form
    269,693.42/404,605.99 = 89,778.49/x
  3. Step 3: Cross multiply
    269,693.42x = 404,605.99 × 89,778.49
  4. Step 4: Simplify right side
    269,693.42x = 36,324,915,698.77
  5. Step 5: Solve for x
    x = 36,324,915,698.77/269,693.42
  6. Step 6: Final answer
    x = 134,689.66

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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.