Home / 111,640.11-154,025.24-69,183.15

Finding the Fourth Proportional to 111,640.11, 154,025.24 and 69,183.15

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Solution

The fourth proportional to 111,640.11, 154,025.24 and 69,183.15 is: 95,449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,640.11 : 154,025.24 = 69,183.15 : x
  2. Step 2: Convert to fraction form
    111,640.11/154,025.24 = 69,183.15/x
  3. Step 3: Cross multiply
    111,640.11x = 154,025.24 × 69,183.15
  4. Step 4: Simplify right side
    111,640.11x = 10,655,950,512.58
  5. Step 5: Solve for x
    x = 10,655,950,512.58/111,640.11
  6. Step 6: Final answer
    x = 95,449.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.