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Finding the Fourth Proportional to 109,609.05, 151,262.49 and 61,853.16

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Solution

The fourth proportional to 109,609.05, 151,262.49 and 61,853.16 is: 85,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,609.05 : 151,262.49 = 61,853.16 : x
  2. Step 2: Convert to fraction form
    109,609.05/151,262.49 = 61,853.16/x
  3. Step 3: Cross multiply
    109,609.05x = 151,262.49 × 61,853.16
  4. Step 4: Simplify right side
    109,609.05x = 9,356,062,995.97
  5. Step 5: Solve for x
    x = 9,356,062,995.97/109,609.05
  6. Step 6: Final answer
    x = 85,358.49

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