Home / 123,022.35-169,735.44-80,065.04

Finding the Fourth Proportional to 123,022.35, 169,735.44 and 80,065.04

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Solution

The fourth proportional to 123,022.35, 169,735.44 and 80,065.04 is: 110,466.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,022.35 : 169,735.44 = 80,065.04 : x
  2. Step 2: Convert to fraction form
    123,022.35/169,735.44 = 80,065.04/x
  3. Step 3: Cross multiply
    123,022.35x = 169,735.44 × 80,065.04
  4. Step 4: Simplify right side
    123,022.35x = 13,589,874,748.98
  5. Step 5: Solve for x
    x = 13,589,874,748.98/123,022.35
  6. Step 6: Final answer
    x = 110,466.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.