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Finding the Fourth Proportional to 111,503.40, 167,255.10 and 106,319.40

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Solution

The fourth proportional to 111,503.40, 167,255.10 and 106,319.40 is: 159,479.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,503.40 : 167,255.10 = 106,319.40 : x
  2. Step 2: Convert to fraction form
    111,503.40/167,255.10 = 106,319.40/x
  3. Step 3: Cross multiply
    111,503.40x = 167,255.10 × 106,319.40
  4. Step 4: Simplify right side
    111,503.40x = 17,782,461,878.94
  5. Step 5: Solve for x
    x = 17,782,461,878.94/111,503.40
  6. Step 6: Final answer
    x = 159,479.10

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