Home / 82,834.60-123,960.30-75,836.20

Finding the Fourth Proportional to 82,834.60, 123,960.30 and 75,836.20

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Solution

The fourth proportional to 82,834.60, 123,960.30 and 75,836.20 is: 113,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,834.60 : 123,960.30 = 75,836.20 : x
  2. Step 2: Convert to fraction form
    82,834.60/123,960.30 = 75,836.20/x
  3. Step 3: Cross multiply
    82,834.60x = 123,960.30 × 75,836.20
  4. Step 4: Simplify right side
    82,834.60x = 9,400,678,102.86
  5. Step 5: Solve for x
    x = 9,400,678,102.86/82,834.60
  6. Step 6: Final answer
    x = 113,487.34

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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.