Home / 214,890.15-321,892.25-125,873.78

Finding the Fourth Proportional to 214,890.15, 321,892.25 and 125,873.78

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Solution

The fourth proportional to 214,890.15, 321,892.25 and 125,873.78 is: 188,551.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,890.15 : 321,892.25 = 125,873.78 : x
  2. Step 2: Convert to fraction form
    214,890.15/321,892.25 = 125,873.78/x
  3. Step 3: Cross multiply
    214,890.15x = 321,892.25 × 125,873.78
  4. Step 4: Simplify right side
    214,890.15x = 40,517,794,435.57
  5. Step 5: Solve for x
    x = 40,517,794,435.57/214,890.15
  6. Step 6: Final answer
    x = 188,551.19

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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.