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Finding the Fourth Proportional to 112,537.62, 155,228.67 and 72,187.44

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Solution

The fourth proportional to 112,537.62, 155,228.67 and 72,187.44 is: 99,571.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,537.62 : 155,228.67 = 72,187.44 : x
  2. Step 2: Convert to fraction form
    112,537.62/155,228.67 = 72,187.44/x
  3. Step 3: Cross multiply
    112,537.62x = 155,228.67 × 72,187.44
  4. Step 4: Simplify right side
    112,537.62x = 11,205,560,301.90
  5. Step 5: Solve for x
    x = 11,205,560,301.90/112,537.62
  6. Step 6: Final answer
    x = 99,571.68

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