Home / 214,761.88-321,899.76-109,358.20

Finding the Fourth Proportional to 214,761.88, 321,899.76 and 109,358.20

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Solution

The fourth proportional to 214,761.88, 321,899.76 and 109,358.20 is: 163,913.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,761.88 : 321,899.76 = 109,358.20 : x
  2. Step 2: Convert to fraction form
    214,761.88/321,899.76 = 109,358.20/x
  3. Step 3: Cross multiply
    214,761.88x = 321,899.76 × 109,358.20
  4. Step 4: Simplify right side
    214,761.88x = 35,202,378,334.03
  5. Step 5: Solve for x
    x = 35,202,378,334.03/214,761.88
  6. Step 6: Final answer
    x = 163,913.53

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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.