Home / 106,043.60-146,342.96-57,648.78

Finding the Fourth Proportional to 106,043.60, 146,342.96 and 57,648.78

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Solution

The fourth proportional to 106,043.60, 146,342.96 and 57,648.78 is: 79,556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,043.60 : 146,342.96 = 57,648.78 : x
  2. Step 2: Convert to fraction form
    106,043.60/146,342.96 = 57,648.78/x
  3. Step 3: Cross multiply
    106,043.60x = 146,342.96 × 57,648.78
  4. Step 4: Simplify right side
    106,043.60x = 8,436,493,105.59
  5. Step 5: Solve for x
    x = 8,436,493,105.59/106,043.60
  6. Step 6: Final answer
    x = 79,556.83

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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.