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Finding the Fourth Proportional to 138,810.54, 191,558.62 and 75,148.36

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Solution

The fourth proportional to 138,810.54, 191,558.62 and 75,148.36 is: 103,704.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,810.54 : 191,558.62 = 75,148.36 : x
  2. Step 2: Convert to fraction form
    138,810.54/191,558.62 = 75,148.36/x
  3. Step 3: Cross multiply
    138,810.54x = 191,558.62 × 75,148.36
  4. Step 4: Simplify right side
    138,810.54x = 14,395,315,751.90
  5. Step 5: Solve for x
    x = 14,395,315,751.90/138,810.54
  6. Step 6: Final answer
    x = 103,704.77

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