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Finding the Fourth Proportional to 138,954.06, 191,767.82 and 78,537.27

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Solution

The fourth proportional to 138,954.06, 191,767.82 and 78,537.27 is: 108,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,954.06 : 191,767.82 = 78,537.27 : x
  2. Step 2: Convert to fraction form
    138,954.06/191,767.82 = 78,537.27/x
  3. Step 3: Cross multiply
    138,954.06x = 191,767.82 × 78,537.27
  4. Step 4: Simplify right side
    138,954.06x = 15,060,921,056.65
  5. Step 5: Solve for x
    x = 15,060,921,056.65/138,954.06
  6. Step 6: Final answer
    x = 108,387.77

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