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Finding the Fourth Proportional to 84,301.15, 126,079.92 and 75,006.40

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Solution

The fourth proportional to 84,301.15, 126,079.92 and 75,006.40 is: 112,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,301.15 : 126,079.92 = 75,006.40 : x
  2. Step 2: Convert to fraction form
    84,301.15/126,079.92 = 75,006.40/x
  3. Step 3: Cross multiply
    84,301.15x = 126,079.92 × 75,006.40
  4. Step 4: Simplify right side
    84,301.15x = 9,456,800,911.49
  5. Step 5: Solve for x
    x = 9,456,800,911.49/84,301.15
  6. Step 6: Final answer
    x = 112,178.79

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