Home / 83,183.12-114,939.36-61,641.92

Finding the Fourth Proportional to 83,183.12, 114,939.36 and 61,641.92

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Solution

The fourth proportional to 83,183.12, 114,939.36 and 61,641.92 is: 85,174.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,183.12 : 114,939.36 = 61,641.92 : x
  2. Step 2: Convert to fraction form
    83,183.12/114,939.36 = 61,641.92/x
  3. Step 3: Cross multiply
    83,183.12x = 114,939.36 × 61,641.92
  4. Step 4: Simplify right side
    83,183.12x = 7,085,082,833.97
  5. Step 5: Solve for x
    x = 7,085,082,833.97/83,183.12
  6. Step 6: Final answer
    x = 85,174.53

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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.