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Finding the Fourth Proportional to 149,472.60, 224,340.12 and 82,987.80

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Solution

The fourth proportional to 149,472.60, 224,340.12 and 82,987.80 is: 124,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,472.60 : 224,340.12 = 82,987.80 : x
  2. Step 2: Convert to fraction form
    149,472.60/224,340.12 = 82,987.80/x
  3. Step 3: Cross multiply
    149,472.60x = 224,340.12 × 82,987.80
  4. Step 4: Simplify right side
    149,472.60x = 18,617,493,010.54
  5. Step 5: Solve for x
    x = 18,617,493,010.54/149,472.60
  6. Step 6: Final answer
    x = 124,554.55

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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.