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Finding the Fourth Proportional to 125,815, 188,251.44 and 75,028.36

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Solution

The fourth proportional to 125,815, 188,251.44 and 75,028.36 is: 112,261.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,815 : 188,251.44 = 75,028.36 : x
  2. Step 2: Convert to fraction form
    125,815/188,251.44 = 75,028.36/x
  3. Step 3: Cross multiply
    125,815x = 188,251.44 × 75,028.36
  4. Step 4: Simplify right side
    125,815x = 14,124,196,810.84
  5. Step 5: Solve for x
    x = 14,124,196,810.84/125,815
  6. Step 6: Final answer
    x = 112,261.63

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