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Finding the Fourth Proportional to 137,346.20, 206,148.90 and 84,858.20

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Solution

The fourth proportional to 137,346.20, 206,148.90 and 84,858.20 is: 127,367.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,346.20 : 206,148.90 = 84,858.20 : x
  2. Step 2: Convert to fraction form
    137,346.20/206,148.90 = 84,858.20/x
  3. Step 3: Cross multiply
    137,346.20x = 206,148.90 × 84,858.20
  4. Step 4: Simplify right side
    137,346.20x = 17,493,424,585.98
  5. Step 5: Solve for x
    x = 17,493,424,585.98/137,346.20
  6. Step 6: Final answer
    x = 127,367.37

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