Home / 214,408.56-321,385.86-72,118.38

Finding the Fourth Proportional to 214,408.56, 321,385.86 and 72,118.38

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Solution

The fourth proportional to 214,408.56, 321,385.86 and 72,118.38 is: 108,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,408.56 : 321,385.86 = 72,118.38 : x
  2. Step 2: Convert to fraction form
    214,408.56/321,385.86 = 72,118.38/x
  3. Step 3: Cross multiply
    214,408.56x = 321,385.86 × 72,118.38
  4. Step 4: Simplify right side
    214,408.56x = 23,177,827,578.11
  5. Step 5: Solve for x
    x = 23,177,827,578.11/214,408.56
  6. Step 6: Final answer
    x = 108,101.22

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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.