Home / 214,135.19-321,078.27-81,025.73

Finding the Fourth Proportional to 214,135.19, 321,078.27 and 81,025.73

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Solution

The fourth proportional to 214,135.19, 321,078.27 and 81,025.73 is: 121,491.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,135.19 : 321,078.27 = 81,025.73 : x
  2. Step 2: Convert to fraction form
    214,135.19/321,078.27 = 81,025.73/x
  3. Step 3: Cross multiply
    214,135.19x = 321,078.27 × 81,025.73
  4. Step 4: Simplify right side
    214,135.19x = 26,015,599,608.50
  5. Step 5: Solve for x
    x = 26,015,599,608.50/214,135.19
  6. Step 6: Final answer
    x = 121,491.48

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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.