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Finding the Fourth Proportional to 116,909.56, 161,297.13 and 71,540.20

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Solution

The fourth proportional to 116,909.56, 161,297.13 and 71,540.20 is: 98,702.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,909.56 : 161,297.13 = 71,540.20 : x
  2. Step 2: Convert to fraction form
    116,909.56/161,297.13 = 71,540.20/x
  3. Step 3: Cross multiply
    116,909.56x = 161,297.13 × 71,540.20
  4. Step 4: Simplify right side
    116,909.56x = 11,539,228,939.63
  5. Step 5: Solve for x
    x = 11,539,228,939.63/116,909.56
  6. Step 6: Final answer
    x = 98,702.18

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