Home / 143,297.72-197,735.82-79,625.24

Finding the Fourth Proportional to 143,297.72, 197,735.82 and 79,625.24

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Solution

The fourth proportional to 143,297.72, 197,735.82 and 79,625.24 is: 109,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,297.72 : 197,735.82 = 79,625.24 : x
  2. Step 2: Convert to fraction form
    143,297.72/197,735.82 = 79,625.24/x
  3. Step 3: Cross multiply
    143,297.72x = 197,735.82 × 79,625.24
  4. Step 4: Simplify right side
    143,297.72x = 15,744,762,124.10
  5. Step 5: Solve for x
    x = 15,744,762,124.10/143,297.72
  6. Step 6: Final answer
    x = 109,874.48

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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.