Home / 214,060.65-321,155.76-80,981.70

Finding the Fourth Proportional to 214,060.65, 321,155.76 and 80,981.70

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Solution

The fourth proportional to 214,060.65, 321,155.76 and 80,981.70 is: 121,497.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,060.65 : 321,155.76 = 80,981.70 : x
  2. Step 2: Convert to fraction form
    214,060.65/321,155.76 = 80,981.70/x
  3. Step 3: Cross multiply
    214,060.65x = 321,155.76 × 80,981.70
  4. Step 4: Simplify right side
    214,060.65x = 26,007,739,409.59
  5. Step 5: Solve for x
    x = 26,007,739,409.59/214,060.65
  6. Step 6: Final answer
    x = 121,497.06

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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.