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Finding the Fourth Proportional to 107,200.80, 160,801.20 and 74,023.20

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Solution

The fourth proportional to 107,200.80, 160,801.20 and 74,023.20 is: 111,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,200.80 : 160,801.20 = 74,023.20 : x
  2. Step 2: Convert to fraction form
    107,200.80/160,801.20 = 74,023.20/x
  3. Step 3: Cross multiply
    107,200.80x = 160,801.20 × 74,023.20
  4. Step 4: Simplify right side
    107,200.80x = 11,903,019,387.84
  5. Step 5: Solve for x
    x = 11,903,019,387.84/107,200.80
  6. Step 6: Final answer
    x = 111,034.80

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