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Finding the Fourth Proportional to 188,297.78, 259,856.28 and 103,420.34

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Solution

The fourth proportional to 188,297.78, 259,856.28 and 103,420.34 is: 142,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,297.78 : 259,856.28 = 103,420.34 : x
  2. Step 2: Convert to fraction form
    188,297.78/259,856.28 = 103,420.34/x
  3. Step 3: Cross multiply
    188,297.78x = 259,856.28 × 103,420.34
  4. Step 4: Simplify right side
    188,297.78x = 26,874,424,828.74
  5. Step 5: Solve for x
    x = 26,874,424,828.74/188,297.78
  6. Step 6: Final answer
    x = 142,723.00

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