Home / 431,513.24-647,387.40-131,987.18

Finding the Fourth Proportional to 431,513.24, 647,387.40 and 131,987.18

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Solution

The fourth proportional to 431,513.24, 647,387.40 and 131,987.18 is: 198,016.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,513.24 : 647,387.40 = 131,987.18 : x
  2. Step 2: Convert to fraction form
    431,513.24/647,387.40 = 131,987.18/x
  3. Step 3: Cross multiply
    431,513.24x = 647,387.40 × 131,987.18
  4. Step 4: Simplify right side
    431,513.24x = 85,446,834,056.60
  5. Step 5: Solve for x
    x = 85,446,834,056.60/431,513.24
  6. Step 6: Final answer
    x = 198,016.72

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