Home / 214,115.86-321,178.98-71,963.20

Finding the Fourth Proportional to 214,115.86, 321,178.98 and 71,963.20

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Solution

The fourth proportional to 214,115.86, 321,178.98 and 71,963.20 is: 107,946.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,115.86 : 321,178.98 = 71,963.20 : x
  2. Step 2: Convert to fraction form
    214,115.86/321,178.98 = 71,963.20/x
  3. Step 3: Cross multiply
    214,115.86x = 321,178.98 × 71,963.20
  4. Step 4: Simplify right side
    214,115.86x = 23,113,067,173.54
  5. Step 5: Solve for x
    x = 23,113,067,173.54/214,115.86
  6. Step 6: Final answer
    x = 107,946.54

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1.5x scale

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.