Home / 214,614.24-321,795-81,503.97

Finding the Fourth Proportional to 214,614.24, 321,795 and 81,503.97

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Solution

The fourth proportional to 214,614.24, 321,795 and 81,503.97 is: 122,207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,614.24 : 321,795 = 81,503.97 : x
  2. Step 2: Convert to fraction form
    214,614.24/321,795 = 81,503.97/x
  3. Step 3: Cross multiply
    214,614.24x = 321,795 × 81,503.97
  4. Step 4: Simplify right side
    214,614.24x = 26,227,570,026.15
  5. Step 5: Solve for x
    x = 26,227,570,026.15/214,614.24
  6. Step 6: Final answer
    x = 122,207.97

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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.