Home / 138,749.73-191,473.92-75,087.54

Finding the Fourth Proportional to 138,749.73, 191,473.92 and 75,087.54

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Solution

The fourth proportional to 138,749.73, 191,473.92 and 75,087.54 is: 103,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,749.73 : 191,473.92 = 75,087.54 : x
  2. Step 2: Convert to fraction form
    138,749.73/191,473.92 = 75,087.54/x
  3. Step 3: Cross multiply
    138,749.73x = 191,473.92 × 75,087.54
  4. Step 4: Simplify right side
    138,749.73x = 14,377,305,626.96
  5. Step 5: Solve for x
    x = 14,377,305,626.96/138,749.73
  6. Step 6: Final answer
    x = 103,620.42

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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.