Home / 128,840.22-193,257.17-49,954.48

Finding the Fourth Proportional to 128,840.22, 193,257.17 and 49,954.48

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Solution

The fourth proportional to 128,840.22, 193,257.17 and 49,954.48 is: 74,930.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,840.22 : 193,257.17 = 49,954.48 : x
  2. Step 2: Convert to fraction form
    128,840.22/193,257.17 = 49,954.48/x
  3. Step 3: Cross multiply
    128,840.22x = 193,257.17 × 49,954.48
  4. Step 4: Simplify right side
    128,840.22x = 9,654,061,433.62
  5. Step 5: Solve for x
    x = 9,654,061,433.62/128,840.22
  6. Step 6: Final answer
    x = 74,930.49

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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.