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Finding the Fourth Proportional to 160,768.72, 221,872.20 and 89,155.60

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Solution

The fourth proportional to 160,768.72, 221,872.20 and 89,155.60 is: 123,041.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,768.72 : 221,872.20 = 89,155.60 : x
  2. Step 2: Convert to fraction form
    160,768.72/221,872.20 = 89,155.60/x
  3. Step 3: Cross multiply
    160,768.72x = 221,872.20 × 89,155.60
  4. Step 4: Simplify right side
    160,768.72x = 19,781,149,114.32
  5. Step 5: Solve for x
    x = 19,781,149,114.32/160,768.72
  6. Step 6: Final answer
    x = 123,041.03

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