Home / 215,864.27-323,797.21-66,103.97

Finding the Fourth Proportional to 215,864.27, 323,797.21 and 66,103.97

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Solution

The fourth proportional to 215,864.27, 323,797.21 and 66,103.97 is: 99,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,864.27 : 323,797.21 = 66,103.97 : x
  2. Step 2: Convert to fraction form
    215,864.27/323,797.21 = 66,103.97/x
  3. Step 3: Cross multiply
    215,864.27x = 323,797.21 × 66,103.97
  4. Step 4: Simplify right side
    215,864.27x = 21,404,281,055.92
  5. Step 5: Solve for x
    x = 21,404,281,055.92/215,864.27
  6. Step 6: Final answer
    x = 99,156.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.