Home / 214,089.33-321,139.20-71,936.64

Finding the Fourth Proportional to 214,089.33, 321,139.20 and 71,936.64

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Solution

The fourth proportional to 214,089.33, 321,139.20 and 71,936.64 is: 107,906.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,089.33 : 321,139.20 = 71,936.64 : x
  2. Step 2: Convert to fraction form
    214,089.33/321,139.20 = 71,936.64/x
  3. Step 3: Cross multiply
    214,089.33x = 321,139.20 × 71,936.64
  4. Step 4: Simplify right side
    214,089.33x = 23,101,675,020.29
  5. Step 5: Solve for x
    x = 23,101,675,020.29/214,089.33
  6. Step 6: Final answer
    x = 107,906.71

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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.