Home / 214,285.92-321,473.83-81,163.23

Finding the Fourth Proportional to 214,285.92, 321,473.83 and 81,163.23

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Solution

The fourth proportional to 214,285.92, 321,473.83 and 81,163.23 is: 121,761.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,285.92 : 321,473.83 = 81,163.23 : x
  2. Step 2: Convert to fraction form
    214,285.92/321,473.83 = 81,163.23/x
  3. Step 3: Cross multiply
    214,285.92x = 321,473.83 × 81,163.23
  4. Step 4: Simplify right side
    214,285.92x = 26,091,854,606.18
  5. Step 5: Solve for x
    x = 26,091,854,606.18/214,285.92
  6. Step 6: Final answer
    x = 121,761.87

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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.