Home / 97,991.33-135,229.38-73,418.63

Finding the Fourth Proportional to 97,991.33, 135,229.38 and 73,418.63

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Solution

The fourth proportional to 97,991.33, 135,229.38 and 73,418.63 is: 101,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,991.33 : 135,229.38 = 73,418.63 : x
  2. Step 2: Convert to fraction form
    97,991.33/135,229.38 = 73,418.63/x
  3. Step 3: Cross multiply
    97,991.33x = 135,229.38 × 73,418.63
  4. Step 4: Simplify right side
    97,991.33x = 9,928,355,815.35
  5. Step 5: Solve for x
    x = 9,928,355,815.35/97,991.33
  6. Step 6: Final answer
    x = 101,318.72

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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.