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Finding the Fourth Proportional to 203,905, 305,978.46 and 93,105.64

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Solution

The fourth proportional to 203,905, 305,978.46 and 93,105.64 is: 139,713.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,905 : 305,978.46 = 93,105.64 : x
  2. Step 2: Convert to fraction form
    203,905/305,978.46 = 93,105.64/x
  3. Step 3: Cross multiply
    203,905x = 305,978.46 × 93,105.64
  4. Step 4: Simplify right side
    203,905x = 28,488,320,344.51
  5. Step 5: Solve for x
    x = 28,488,320,344.51/203,905
  6. Step 6: Final answer
    x = 139,713.69

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