Home / 214,253.89-321,421.46-86,179.97

Finding the Fourth Proportional to 214,253.89, 321,421.46 and 86,179.97

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Solution

The fourth proportional to 214,253.89, 321,421.46 and 86,179.97 is: 129,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,253.89 : 321,421.46 = 86,179.97 : x
  2. Step 2: Convert to fraction form
    214,253.89/321,421.46 = 86,179.97/x
  3. Step 3: Cross multiply
    214,253.89x = 321,421.46 × 86,179.97
  4. Step 4: Simplify right side
    214,253.89x = 27,700,092,152.81
  5. Step 5: Solve for x
    x = 27,700,092,152.81/214,253.89
  6. Step 6: Final answer
    x = 129,286.30

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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.