Home / 281,870.07-422,760.09-82,143.74

Finding the Fourth Proportional to 281,870.07, 422,760.09 and 82,143.74

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Solution

The fourth proportional to 281,870.07, 422,760.09 and 82,143.74 is: 123,202.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,870.07 : 422,760.09 = 82,143.74 : x
  2. Step 2: Convert to fraction form
    281,870.07/422,760.09 = 82,143.74/x
  3. Step 3: Cross multiply
    281,870.07x = 422,760.09 × 82,143.74
  4. Step 4: Simplify right side
    281,870.07x = 34,727,092,801.54
  5. Step 5: Solve for x
    x = 34,727,092,801.54/281,870.07
  6. Step 6: Final answer
    x = 123,202.48

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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.