Home / 197,163.78-272,086.17-106,519.71

Finding the Fourth Proportional to 197,163.78, 272,086.17 and 106,519.71

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Solution

The fourth proportional to 197,163.78, 272,086.17 and 106,519.71 is: 146,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,163.78 : 272,086.17 = 106,519.71 : x
  2. Step 2: Convert to fraction form
    197,163.78/272,086.17 = 106,519.71/x
  3. Step 3: Cross multiply
    197,163.78x = 272,086.17 × 106,519.71
  4. Step 4: Simplify right side
    197,163.78x = 28,982,539,923.41
  5. Step 5: Solve for x
    x = 28,982,539,923.41/197,163.78
  6. Step 6: Final answer
    x = 146,997.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.