Home / 148,844.50-205,418.37-81,789.46

Finding the Fourth Proportional to 148,844.50, 205,418.37 and 81,789.46

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Solution

The fourth proportional to 148,844.50, 205,418.37 and 81,789.46 is: 112,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,844.50 : 205,418.37 = 81,789.46 : x
  2. Step 2: Convert to fraction form
    148,844.50/205,418.37 = 81,789.46/x
  3. Step 3: Cross multiply
    148,844.50x = 205,418.37 × 81,789.46
  4. Step 4: Simplify right side
    148,844.50x = 16,801,057,556.38
  5. Step 5: Solve for x
    x = 16,801,057,556.38/148,844.50
  6. Step 6: Final answer
    x = 112,876.58

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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.