Home / 148,406.13-204,791.76-87,982.56

Finding the Fourth Proportional to 148,406.13, 204,791.76 and 87,982.56

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Solution

The fourth proportional to 148,406.13, 204,791.76 and 87,982.56 is: 121,410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,406.13 : 204,791.76 = 87,982.56 : x
  2. Step 2: Convert to fraction form
    148,406.13/204,791.76 = 87,982.56/x
  3. Step 3: Cross multiply
    148,406.13x = 204,791.76 × 87,982.56
  4. Step 4: Simplify right side
    148,406.13x = 18,018,103,311.71
  5. Step 5: Solve for x
    x = 18,018,103,311.71/148,406.13
  6. Step 6: Final answer
    x = 121,410.78

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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.