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Finding the Fourth Proportional to 99,172.80, 148,672.80 and 59,745.60

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Solution

The fourth proportional to 99,172.80, 148,672.80 and 59,745.60 is: 89,566.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,172.80 : 148,672.80 = 59,745.60 : x
  2. Step 2: Convert to fraction form
    99,172.80/148,672.80 = 59,745.60/x
  3. Step 3: Cross multiply
    99,172.80x = 148,672.80 × 59,745.60
  4. Step 4: Simplify right side
    99,172.80x = 8,882,545,639.68
  5. Step 5: Solve for x
    x = 8,882,545,639.68/99,172.80
  6. Step 6: Final answer
    x = 89,566.35

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