Home / 214,941.40-321,974.70-109,819.60

Finding the Fourth Proportional to 214,941.40, 321,974.70 and 109,819.60

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Solution

The fourth proportional to 214,941.40, 321,974.70 and 109,819.60 is: 164,505.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,941.40 : 321,974.70 = 109,819.60 : x
  2. Step 2: Convert to fraction form
    214,941.40/321,974.70 = 109,819.60/x
  3. Step 3: Cross multiply
    214,941.40x = 321,974.70 × 109,819.60
  4. Step 4: Simplify right side
    214,941.40x = 35,359,132,764.12
  5. Step 5: Solve for x
    x = 35,359,132,764.12/214,941.40
  6. Step 6: Final answer
    x = 164,505.92

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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.