Home / 106,537.56-159,778.70-31,640.10

Finding the Fourth Proportional to 106,537.56, 159,778.70 and 31,640.10

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Solution

The fourth proportional to 106,537.56, 159,778.70 and 31,640.10 is: 47,451.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,537.56 : 159,778.70 = 31,640.10 : x
  2. Step 2: Convert to fraction form
    106,537.56/159,778.70 = 31,640.10/x
  3. Step 3: Cross multiply
    106,537.56x = 159,778.70 × 31,640.10
  4. Step 4: Simplify right side
    106,537.56x = 5,055,413,488.22
  5. Step 5: Solve for x
    x = 5,055,413,488.22/106,537.56
  6. Step 6: Final answer
    x = 47,451.94

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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.