Home / 214,060.64-321,155.78-80,981.69

Finding the Fourth Proportional to 214,060.64, 321,155.78 and 80,981.69

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Solution

The fourth proportional to 214,060.64, 321,155.78 and 80,981.69 is: 121,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,060.64 : 321,155.78 = 80,981.69 : x
  2. Step 2: Convert to fraction form
    214,060.64/321,155.78 = 80,981.69/x
  3. Step 3: Cross multiply
    214,060.64x = 321,155.78 × 80,981.69
  4. Step 4: Simplify right side
    214,060.64x = 26,007,735,806.98
  5. Step 5: Solve for x
    x = 26,007,735,806.98/214,060.64
  6. Step 6: Final answer
    x = 121,497.05

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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.