Home / 281,367.38-422,085.75-91,777.06

Finding the Fourth Proportional to 281,367.38, 422,085.75 and 91,777.06

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Solution

The fourth proportional to 281,367.38, 422,085.75 and 91,777.06 is: 137,676.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,367.38 : 422,085.75 = 91,777.06 : x
  2. Step 2: Convert to fraction form
    281,367.38/422,085.75 = 91,777.06/x
  3. Step 3: Cross multiply
    281,367.38x = 422,085.75 × 91,777.06
  4. Step 4: Simplify right side
    281,367.38x = 38,737,789,202.90
  5. Step 5: Solve for x
    x = 38,737,789,202.90/281,367.38
  6. Step 6: Final answer
    x = 137,676.90

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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.