Home / 82,040.80-123,061.20-73,183.45

Finding the Fourth Proportional to 82,040.80, 123,061.20 and 73,183.45

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Solution

The fourth proportional to 82,040.80, 123,061.20 and 73,183.45 is: 109,775.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,040.80 : 123,061.20 = 73,183.45 : x
  2. Step 2: Convert to fraction form
    82,040.80/123,061.20 = 73,183.45/x
  3. Step 3: Cross multiply
    82,040.80x = 123,061.20 × 73,183.45
  4. Step 4: Simplify right side
    82,040.80x = 9,006,043,177.14
  5. Step 5: Solve for x
    x = 9,006,043,177.14/82,040.80
  6. Step 6: Final answer
    x = 109,775.18

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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.