Home / 214,610.58-321,789.42-81,500.22

Finding the Fourth Proportional to 214,610.58, 321,789.42 and 81,500.22

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Solution

The fourth proportional to 214,610.58, 321,789.42 and 81,500.22 is: 122,202.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,610.58 : 321,789.42 = 81,500.22 : x
  2. Step 2: Convert to fraction form
    214,610.58/321,789.42 = 81,500.22/x
  3. Step 3: Cross multiply
    214,610.58x = 321,789.42 × 81,500.22
  4. Step 4: Simplify right side
    214,610.58x = 26,225,908,523.67
  5. Step 5: Solve for x
    x = 26,225,908,523.67/214,610.58
  6. Step 6: Final answer
    x = 122,202.31

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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.