Home / 214,126.89-321,219.82-71,983.19

Finding the Fourth Proportional to 214,126.89, 321,219.82 and 71,983.19

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Solution

The fourth proportional to 214,126.89, 321,219.82 and 71,983.19 is: 107,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,126.89 : 321,219.82 = 71,983.19 : x
  2. Step 2: Convert to fraction form
    214,126.89/321,219.82 = 71,983.19/x
  3. Step 3: Cross multiply
    214,126.89x = 321,219.82 × 71,983.19
  4. Step 4: Simplify right side
    214,126.89x = 23,122,427,822.95
  5. Step 5: Solve for x
    x = 23,122,427,822.95/214,126.89
  6. Step 6: Final answer
    x = 107,984.70

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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.