Home / 106,171.38-159,231.56-31,271.29

Finding the Fourth Proportional to 106,171.38, 159,231.56 and 31,271.29

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Solution

The fourth proportional to 106,171.38, 159,231.56 and 31,271.29 is: 46,899.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,171.38 : 159,231.56 = 31,271.29 : x
  2. Step 2: Convert to fraction form
    106,171.38/159,231.56 = 31,271.29/x
  3. Step 3: Cross multiply
    106,171.38x = 159,231.56 × 31,271.29
  4. Step 4: Simplify right side
    106,171.38x = 4,979,375,735.48
  5. Step 5: Solve for x
    x = 4,979,375,735.48/106,171.38
  6. Step 6: Final answer
    x = 46,899.42

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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.