Home / 82,273.19-123,169.14-74,393.78

Finding the Fourth Proportional to 82,273.19, 123,169.14 and 74,393.78

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Solution

The fourth proportional to 82,273.19, 123,169.14 and 74,393.78 is: 111,373.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,273.19 : 123,169.14 = 74,393.78 : x
  2. Step 2: Convert to fraction form
    82,273.19/123,169.14 = 74,393.78/x
  3. Step 3: Cross multiply
    82,273.19x = 123,169.14 × 74,393.78
  4. Step 4: Simplify right side
    82,273.19x = 9,163,017,288.10
  5. Step 5: Solve for x
    x = 9,163,017,288.10/82,273.19
  6. Step 6: Final answer
    x = 111,373.07

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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.