Home / 143,537.67-198,078.62-79,874.10

Finding the Fourth Proportional to 143,537.67, 198,078.62 and 79,874.10

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Solution

The fourth proportional to 143,537.67, 198,078.62 and 79,874.10 is: 110,224.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,537.67 : 198,078.62 = 79,874.10 : x
  2. Step 2: Convert to fraction form
    143,537.67/198,078.62 = 79,874.10/x
  3. Step 3: Cross multiply
    143,537.67x = 198,078.62 × 79,874.10
  4. Step 4: Simplify right side
    143,537.67x = 15,821,351,102.37
  5. Step 5: Solve for x
    x = 15,821,351,102.37/143,537.67
  6. Step 6: Final answer
    x = 110,224.38

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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.