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Finding the Fourth Proportional to 158,979.80, 219,387.66 and 87,359.78

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Solution

The fourth proportional to 158,979.80, 219,387.66 and 87,359.78 is: 120,554.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,979.80 : 219,387.66 = 87,359.78 : x
  2. Step 2: Convert to fraction form
    158,979.80/219,387.66 = 87,359.78/x
  3. Step 3: Cross multiply
    158,979.80x = 219,387.66 × 87,359.78
  4. Step 4: Simplify right side
    158,979.80x = 19,165,657,712.31
  5. Step 5: Solve for x
    x = 19,165,657,712.31/158,979.80
  6. Step 6: Final answer
    x = 120,554.04

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