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Finding the Fourth Proportional to 113,900.40, 170,850.60 and 57,913.20

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Solution

The fourth proportional to 113,900.40, 170,850.60 and 57,913.20 is: 86,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,900.40 : 170,850.60 = 57,913.20 : x
  2. Step 2: Convert to fraction form
    113,900.40/170,850.60 = 57,913.20/x
  3. Step 3: Cross multiply
    113,900.40x = 170,850.60 × 57,913.20
  4. Step 4: Simplify right side
    113,900.40x = 9,894,504,967.92
  5. Step 5: Solve for x
    x = 9,894,504,967.92/113,900.40
  6. Step 6: Final answer
    x = 86,869.80

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