Home / 103,436.43-155,155.19-41,107.11

Finding the Fourth Proportional to 103,436.43, 155,155.19 and 41,107.11

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Solution

The fourth proportional to 103,436.43, 155,155.19 and 41,107.11 is: 61,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,436.43 : 155,155.19 = 41,107.11 : x
  2. Step 2: Convert to fraction form
    103,436.43/155,155.19 = 41,107.11/x
  3. Step 3: Cross multiply
    103,436.43x = 155,155.19 × 41,107.11
  4. Step 4: Simplify right side
    103,436.43x = 6,377,981,256.87
  5. Step 5: Solve for x
    x = 6,377,981,256.87/103,436.43
  6. Step 6: Final answer
    x = 61,660.88

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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.