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Finding the Fourth Proportional to 138,868.14, 191,494.71 and 118,791.48

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Solution

The fourth proportional to 138,868.14, 191,494.71 and 118,791.48 is: 163,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,868.14 : 191,494.71 = 118,791.48 : x
  2. Step 2: Convert to fraction form
    138,868.14/191,494.71 = 118,791.48/x
  3. Step 3: Cross multiply
    138,868.14x = 191,494.71 × 118,791.48
  4. Step 4: Simplify right side
    138,868.14x = 22,747,940,013.07
  5. Step 5: Solve for x
    x = 22,747,940,013.07/138,868.14
  6. Step 6: Final answer
    x = 163,809.64

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