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Finding the Fourth Proportional to 158,906.80, 219,285.50 and 87,282.56

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Solution

The fourth proportional to 158,906.80, 219,285.50 and 87,282.56 is: 120,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,906.80 : 219,285.50 = 87,282.56 : x
  2. Step 2: Convert to fraction form
    158,906.80/219,285.50 = 87,282.56/x
  3. Step 3: Cross multiply
    158,906.80x = 219,285.50 × 87,282.56
  4. Step 4: Simplify right side
    158,906.80x = 19,139,799,810.88
  5. Step 5: Solve for x
    x = 19,139,799,810.88/158,906.80
  6. Step 6: Final answer
    x = 120,446.70

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