Home / 143,168.20-197,578.68-79,506.28

Finding the Fourth Proportional to 143,168.20, 197,578.68 and 79,506.28

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Solution

The fourth proportional to 143,168.20, 197,578.68 and 79,506.28 is: 109,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,168.20 : 197,578.68 = 79,506.28 : x
  2. Step 2: Convert to fraction form
    143,168.20/197,578.68 = 79,506.28/x
  3. Step 3: Cross multiply
    143,168.20x = 197,578.68 × 79,506.28
  4. Step 4: Simplify right side
    143,168.20x = 15,708,745,854.11
  5. Step 5: Solve for x
    x = 15,708,745,854.11/143,168.20
  6. Step 6: Final answer
    x = 109,722.31

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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.