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Finding the Fourth Proportional to 158,717.51, 219,032.85 and 87,104.20

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Solution

The fourth proportional to 158,717.51, 219,032.85 and 87,104.20 is: 120,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,717.51 : 219,032.85 = 87,104.20 : x
  2. Step 2: Convert to fraction form
    158,717.51/219,032.85 = 87,104.20/x
  3. Step 3: Cross multiply
    158,717.51x = 219,032.85 × 87,104.20
  4. Step 4: Simplify right side
    158,717.51x = 19,078,681,172.97
  5. Step 5: Solve for x
    x = 19,078,681,172.97/158,717.51
  6. Step 6: Final answer
    x = 120,205.27

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