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Finding the Fourth Proportional to 115,281.20, 171,762.71 and 108,835.40

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Solution

The fourth proportional to 115,281.20, 171,762.71 and 108,835.40 is: 162,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,281.20 : 171,762.71 = 108,835.40 : x
  2. Step 2: Convert to fraction form
    115,281.20/171,762.71 = 108,835.40/x
  3. Step 3: Cross multiply
    115,281.20x = 171,762.71 × 108,835.40
  4. Step 4: Simplify right side
    115,281.20x = 18,693,863,133.16
  5. Step 5: Solve for x
    x = 18,693,863,133.16/115,281.20
  6. Step 6: Final answer
    x = 162,158.81

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