Home / 106,447.44-146,910.78-61,139.60

Finding the Fourth Proportional to 106,447.44, 146,910.78 and 61,139.60

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Solution

The fourth proportional to 106,447.44, 146,910.78 and 61,139.60 is: 84,380.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,447.44 : 146,910.78 = 61,139.60 : x
  2. Step 2: Convert to fraction form
    106,447.44/146,910.78 = 61,139.60/x
  3. Step 3: Cross multiply
    106,447.44x = 146,910.78 × 61,139.60
  4. Step 4: Simplify right side
    106,447.44x = 8,982,066,324.89
  5. Step 5: Solve for x
    x = 8,982,066,324.89/106,447.44
  6. Step 6: Final answer
    x = 84,380.29

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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.