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Finding the Fourth Proportional to 107,200.80, 160,801.20 and 89,834.40

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Solution

The fourth proportional to 107,200.80, 160,801.20 and 89,834.40 is: 134,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,200.80 : 160,801.20 = 89,834.40 : x
  2. Step 2: Convert to fraction form
    107,200.80/160,801.20 = 89,834.40/x
  3. Step 3: Cross multiply
    107,200.80x = 160,801.20 × 89,834.40
  4. Step 4: Simplify right side
    107,200.80x = 14,445,479,321.28
  5. Step 5: Solve for x
    x = 14,445,479,321.28/107,200.80
  6. Step 6: Final answer
    x = 134,751.60

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