Home / 214,023.63-321,039.09-80,966.55

Finding the Fourth Proportional to 214,023.63, 321,039.09 and 80,966.55

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Solution

The fourth proportional to 214,023.63, 321,039.09 and 80,966.55 is: 121,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,023.63 : 321,039.09 = 80,966.55 : x
  2. Step 2: Convert to fraction form
    214,023.63/321,039.09 = 80,966.55/x
  3. Step 3: Cross multiply
    214,023.63x = 321,039.09 × 80,966.55
  4. Step 4: Simplify right side
    214,023.63x = 25,993,427,532.44
  5. Step 5: Solve for x
    x = 25,993,427,532.44/214,023.63
  6. Step 6: Final answer
    x = 121,451.20

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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.