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Finding the Fourth Proportional to 144,688.40, 217,032.60 and 74,704.40

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Solution

The fourth proportional to 144,688.40, 217,032.60 and 74,704.40 is: 112,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,688.40 : 217,032.60 = 74,704.40 : x
  2. Step 2: Convert to fraction form
    144,688.40/217,032.60 = 74,704.40/x
  3. Step 3: Cross multiply
    144,688.40x = 217,032.60 × 74,704.40
  4. Step 4: Simplify right side
    144,688.40x = 16,213,290,163.44
  5. Step 5: Solve for x
    x = 16,213,290,163.44/144,688.40
  6. Step 6: Final answer
    x = 112,056.60

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