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Finding the Fourth Proportional to 133,083.60, 199,625.40 and 83,479.20

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Solution

The fourth proportional to 133,083.60, 199,625.40 and 83,479.20 is: 125,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,083.60 : 199,625.40 = 83,479.20 : x
  2. Step 2: Convert to fraction form
    133,083.60/199,625.40 = 83,479.20/x
  3. Step 3: Cross multiply
    133,083.60x = 199,625.40 × 83,479.20
  4. Step 4: Simplify right side
    133,083.60x = 16,664,568,691.68
  5. Step 5: Solve for x
    x = 16,664,568,691.68/133,083.60
  6. Step 6: Final answer
    x = 125,218.80

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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.