Home / 214,255.61-321,337.28-87,771.83

Finding the Fourth Proportional to 214,255.61, 321,337.28 and 87,771.83

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Solution

The fourth proportional to 214,255.61, 321,337.28 and 87,771.83 is: 131,638.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,255.61 : 321,337.28 = 87,771.83 : x
  2. Step 2: Convert to fraction form
    214,255.61/321,337.28 = 87,771.83/x
  3. Step 3: Cross multiply
    214,255.61x = 321,337.28 × 87,771.83
  4. Step 4: Simplify right side
    214,255.61x = 28,204,360,135.61
  5. Step 5: Solve for x
    x = 28,204,360,135.61/214,255.61
  6. Step 6: Final answer
    x = 131,638.84

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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.