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Finding the Fourth Proportional to 159,321.91, 219,870.51 and 87,708.60

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Solution

The fourth proportional to 159,321.91, 219,870.51 and 87,708.60 is: 121,041.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,321.91 : 219,870.51 = 87,708.60 : x
  2. Step 2: Convert to fraction form
    159,321.91/219,870.51 = 87,708.60/x
  3. Step 3: Cross multiply
    159,321.91x = 219,870.51 × 87,708.60
  4. Step 4: Simplify right side
    159,321.91x = 19,284,534,613.39
  5. Step 5: Solve for x
    x = 19,284,534,613.39/159,321.91
  6. Step 6: Final answer
    x = 121,041.32

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