Home / 214,104.06-321,201.18-80,981.40

Finding the Fourth Proportional to 214,104.06, 321,201.18 and 80,981.40

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Solution

The fourth proportional to 214,104.06, 321,201.18 and 80,981.40 is: 121,489.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,104.06 : 321,201.18 = 80,981.40 : x
  2. Step 2: Convert to fraction form
    214,104.06/321,201.18 = 80,981.40/x
  3. Step 3: Cross multiply
    214,104.06x = 321,201.18 × 80,981.40
  4. Step 4: Simplify right side
    214,104.06x = 26,011,321,238.05
  5. Step 5: Solve for x
    x = 26,011,321,238.05/214,104.06
  6. Step 6: Final answer
    x = 121,489.15

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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.