Home / 81,299.38-121,951.23-22,136.26

Finding the Fourth Proportional to 81,299.38, 121,951.23 and 22,136.26

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Solution

The fourth proportional to 81,299.38, 121,951.23 and 22,136.26 is: 33,204.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,299.38 : 121,951.23 = 22,136.26 : x
  2. Step 2: Convert to fraction form
    81,299.38/121,951.23 = 22,136.26/x
  3. Step 3: Cross multiply
    81,299.38x = 121,951.23 × 22,136.26
  4. Step 4: Simplify right side
    81,299.38x = 2,699,544,134.60
  5. Step 5: Solve for x
    x = 2,699,544,134.60/81,299.38
  6. Step 6: Final answer
    x = 33,204.98

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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.