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Finding the Fourth Proportional to 113,903.28, 170,855.55 and 74,708.64

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Solution

The fourth proportional to 113,903.28, 170,855.55 and 74,708.64 is: 112,063.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,903.28 : 170,855.55 = 74,708.64 : x
  2. Step 2: Convert to fraction form
    113,903.28/170,855.55 = 74,708.64/x
  3. Step 3: Cross multiply
    113,903.28x = 170,855.55 × 74,708.64
  4. Step 4: Simplify right side
    113,903.28x = 12,764,385,776.95
  5. Step 5: Solve for x
    x = 12,764,385,776.95/113,903.28
  6. Step 6: Final answer
    x = 112,063.37

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