Home / 214,425.60-321,411.36-72,135.44

Finding the Fourth Proportional to 214,425.60, 321,411.36 and 72,135.44

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Solution

The fourth proportional to 214,425.60, 321,411.36 and 72,135.44 is: 108,126.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,425.60 : 321,411.36 = 72,135.44 : x
  2. Step 2: Convert to fraction form
    214,425.60/321,411.36 = 72,135.44/x
  3. Step 3: Cross multiply
    214,425.60x = 321,411.36 × 72,135.44
  4. Step 4: Simplify right side
    214,425.60x = 23,185,149,874.60
  5. Step 5: Solve for x
    x = 23,185,149,874.60/214,425.60
  6. Step 6: Final answer
    x = 108,126.78

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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.