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Finding the Fourth Proportional to 99,874.56, 137,822.08 and 55,161.60

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Solution

The fourth proportional to 99,874.56, 137,822.08 and 55,161.60 is: 76,120.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,874.56 : 137,822.08 = 55,161.60 : x
  2. Step 2: Convert to fraction form
    99,874.56/137,822.08 = 55,161.60/x
  3. Step 3: Cross multiply
    99,874.56x = 137,822.08 × 55,161.60
  4. Step 4: Simplify right side
    99,874.56x = 7,602,486,448.13
  5. Step 5: Solve for x
    x = 7,602,486,448.13/99,874.56
  6. Step 6: Final answer
    x = 76,120.35

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