Home / 89,856.20-134,784.30-82,857.80

Finding the Fourth Proportional to 89,856.20, 134,784.30 and 82,857.80

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Solution

The fourth proportional to 89,856.20, 134,784.30 and 82,857.80 is: 124,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,856.20 : 134,784.30 = 82,857.80 : x
  2. Step 2: Convert to fraction form
    89,856.20/134,784.30 = 82,857.80/x
  3. Step 3: Cross multiply
    89,856.20x = 134,784.30 × 82,857.80
  4. Step 4: Simplify right side
    89,856.20x = 11,167,930,572.54
  5. Step 5: Solve for x
    x = 11,167,930,572.54/89,856.20
  6. Step 6: Final answer
    x = 124,286.70

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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.