Home / 102,938.24-154,481.20-43,815.44

Finding the Fourth Proportional to 102,938.24, 154,481.20 and 43,815.44

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Solution

The fourth proportional to 102,938.24, 154,481.20 and 43,815.44 is: 65,754.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,938.24 : 154,481.20 = 43,815.44 : x
  2. Step 2: Convert to fraction form
    102,938.24/154,481.20 = 43,815.44/x
  3. Step 3: Cross multiply
    102,938.24x = 154,481.20 × 43,815.44
  4. Step 4: Simplify right side
    102,938.24x = 6,768,661,749.73
  5. Step 5: Solve for x
    x = 6,768,661,749.73/102,938.24
  6. Step 6: Final answer
    x = 65,754.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.