Home / 106,119.38-159,124.30-31,229.80

Finding the Fourth Proportional to 106,119.38, 159,124.30 and 31,229.80

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Solution

The fourth proportional to 106,119.38, 159,124.30 and 31,229.80 is: 46,828.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,119.38 : 159,124.30 = 31,229.80 : x
  2. Step 2: Convert to fraction form
    106,119.38/159,124.30 = 31,229.80/x
  3. Step 3: Cross multiply
    106,119.38x = 159,124.30 × 31,229.80
  4. Step 4: Simplify right side
    106,119.38x = 4,969,420,483.33
  5. Step 5: Solve for x
    x = 4,969,420,483.33/106,119.38
  6. Step 6: Final answer
    x = 46,828.58

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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.