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Finding the Fourth Proportional to 169,936.80, 255,099.60 and 99,855.60

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Solution

The fourth proportional to 169,936.80, 255,099.60 and 99,855.60 is: 149,897.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,936.80 : 255,099.60 = 99,855.60 : x
  2. Step 2: Convert to fraction form
    169,936.80/255,099.60 = 99,855.60/x
  3. Step 3: Cross multiply
    169,936.80x = 255,099.60 × 99,855.60
  4. Step 4: Simplify right side
    169,936.80x = 25,473,123,617.76
  5. Step 5: Solve for x
    x = 25,473,123,617.76/169,936.80
  6. Step 6: Final answer
    x = 149,897.63

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