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Finding the Fourth Proportional to 107,924.80, 161,822.40 and 55,436.80

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Solution

The fourth proportional to 107,924.80, 161,822.40 and 55,436.80 is: 83,121.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,924.80 : 161,822.40 = 55,436.80 : x
  2. Step 2: Convert to fraction form
    107,924.80/161,822.40 = 55,436.80/x
  3. Step 3: Cross multiply
    107,924.80x = 161,822.40 × 55,436.80
  4. Step 4: Simplify right side
    107,924.80x = 8,970,916,024.32
  5. Step 5: Solve for x
    x = 8,970,916,024.32/107,924.80
  6. Step 6: Final answer
    x = 83,121.91

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