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Finding the Fourth Proportional to 138,991.76, 191,803.46 and 75,328.18

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Solution

The fourth proportional to 138,991.76, 191,803.46 and 75,328.18 is: 103,950.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,991.76 : 191,803.46 = 75,328.18 : x
  2. Step 2: Convert to fraction form
    138,991.76/191,803.46 = 75,328.18/x
  3. Step 3: Cross multiply
    138,991.76x = 191,803.46 × 75,328.18
  4. Step 4: Simplify right side
    138,991.76x = 14,448,205,559.50
  5. Step 5: Solve for x
    x = 14,448,205,559.50/138,991.76
  6. Step 6: Final answer
    x = 103,950.09

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