Home / 82,153.26-123,230.30-25,991.10

Finding the Fourth Proportional to 82,153.26, 123,230.30 and 25,991.10

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Solution

The fourth proportional to 82,153.26, 123,230.30 and 25,991.10 is: 38,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,153.26 : 123,230.30 = 25,991.10 : x
  2. Step 2: Convert to fraction form
    82,153.26/123,230.30 = 25,991.10/x
  3. Step 3: Cross multiply
    82,153.26x = 123,230.30 × 25,991.10
  4. Step 4: Simplify right side
    82,153.26x = 3,202,890,920.37
  5. Step 5: Solve for x
    x = 3,202,890,920.37/82,153.26
  6. Step 6: Final answer
    x = 38,986.78

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1.5x scale

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.