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Finding the Fourth Proportional to 161,558.40, 242,244.80 and 68,129.60

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Solution

The fourth proportional to 161,558.40, 242,244.80 and 68,129.60 is: 102,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,558.40 : 242,244.80 = 68,129.60 : x
  2. Step 2: Convert to fraction form
    161,558.40/242,244.80 = 68,129.60/x
  3. Step 3: Cross multiply
    161,558.40x = 242,244.80 × 68,129.60
  4. Step 4: Simplify right side
    161,558.40x = 16,504,041,326.08
  5. Step 5: Solve for x
    x = 16,504,041,326.08/161,558.40
  6. Step 6: Final answer
    x = 102,155.27

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