Home / 281,760.50-422,665.35-71,398.45

Finding the Fourth Proportional to 281,760.50, 422,665.35 and 71,398.45

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Solution

The fourth proportional to 281,760.50, 422,665.35 and 71,398.45 is: 107,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,760.50 : 422,665.35 = 71,398.45 : x
  2. Step 2: Convert to fraction form
    281,760.50/422,665.35 = 71,398.45/x
  3. Step 3: Cross multiply
    281,760.50x = 422,665.35 × 71,398.45
  4. Step 4: Simplify right side
    281,760.50x = 30,177,648,745.38
  5. Step 5: Solve for x
    x = 30,177,648,745.38/281,760.50
  6. Step 6: Final answer
    x = 107,103.90

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1.5x scale

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.