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Finding the Fourth Proportional to 111,722.10, 167,364.45 and 67,216.65

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Solution

The fourth proportional to 111,722.10, 167,364.45 and 67,216.65 is: 100,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,722.10 : 167,364.45 = 67,216.65 : x
  2. Step 2: Convert to fraction form
    111,722.10/167,364.45 = 67,216.65/x
  3. Step 3: Cross multiply
    111,722.10x = 167,364.45 × 67,216.65
  4. Step 4: Simplify right side
    111,722.10x = 11,249,677,658.09
  5. Step 5: Solve for x
    x = 11,249,677,658.09/111,722.10
  6. Step 6: Final answer
    x = 100,693.40

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