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Finding the Fourth Proportional to 259,214.26, 388,821.40 and 81,735.11

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Solution

The fourth proportional to 259,214.26, 388,821.40 and 81,735.11 is: 122,602.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,214.26 : 388,821.40 = 81,735.11 : x
  2. Step 2: Convert to fraction form
    259,214.26/388,821.40 = 81,735.11/x
  3. Step 3: Cross multiply
    259,214.26x = 388,821.40 × 81,735.11
  4. Step 4: Simplify right side
    259,214.26x = 31,780,359,899.35
  5. Step 5: Solve for x
    x = 31,780,359,899.35/259,214.26
  6. Step 6: Final answer
    x = 122,602.67

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