Home / 73,255.10-110,431.70-68,372.57

Finding the Fourth Proportional to 73,255.10, 110,431.70 and 68,372.57

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Solution

The fourth proportional to 73,255.10, 110,431.70 and 68,372.57 is: 103,071.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,255.10 : 110,431.70 = 68,372.57 : x
  2. Step 2: Convert to fraction form
    73,255.10/110,431.70 = 68,372.57/x
  3. Step 3: Cross multiply
    73,255.10x = 110,431.70 × 68,372.57
  4. Step 4: Simplify right side
    73,255.10x = 7,550,498,757.24
  5. Step 5: Solve for x
    x = 7,550,498,757.24/73,255.10
  6. Step 6: Final answer
    x = 103,071.31

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.