Home / 82,660.21-123,943.62-75,607.13

Finding the Fourth Proportional to 82,660.21, 123,943.62 and 75,607.13

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Solution

The fourth proportional to 82,660.21, 123,943.62 and 75,607.13 is: 113,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,660.21 : 123,943.62 = 75,607.13 : x
  2. Step 2: Convert to fraction form
    82,660.21/123,943.62 = 75,607.13/x
  3. Step 3: Cross multiply
    82,660.21x = 123,943.62 × 75,607.13
  4. Step 4: Simplify right side
    82,660.21x = 9,371,021,390.01
  5. Step 5: Solve for x
    x = 9,371,021,390.01/82,660.21
  6. Step 6: Final answer
    x = 113,367.98

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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.