Home / 213,391.21-294,387.35-128,459.06

Finding the Fourth Proportional to 213,391.21, 294,387.35 and 128,459.06

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Solution

The fourth proportional to 213,391.21, 294,387.35 and 128,459.06 is: 177,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,391.21 : 294,387.35 = 128,459.06 : x
  2. Step 2: Convert to fraction form
    213,391.21/294,387.35 = 128,459.06/x
  3. Step 3: Cross multiply
    213,391.21x = 294,387.35 × 128,459.06
  4. Step 4: Simplify right side
    213,391.21x = 37,816,723,314.01
  5. Step 5: Solve for x
    x = 37,816,723,314.01/213,391.21
  6. Step 6: Final answer
    x = 177,217.81

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