Home / 143,170.20-197,581.44-79,508.28

Finding the Fourth Proportional to 143,170.20, 197,581.44 and 79,508.28

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Solution

The fourth proportional to 143,170.20, 197,581.44 and 79,508.28 is: 109,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,170.20 : 197,581.44 = 79,508.28 : x
  2. Step 2: Convert to fraction form
    143,170.20/197,581.44 = 79,508.28/x
  3. Step 3: Cross multiply
    143,170.20x = 197,581.44 × 79,508.28
  4. Step 4: Simplify right side
    143,170.20x = 15,709,360,454.32
  5. Step 5: Solve for x
    x = 15,709,360,454.32/143,170.20
  6. Step 6: Final answer
    x = 109,725.07

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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.