Home / 143,436.24-197,917.96-79,765.52

Finding the Fourth Proportional to 143,436.24, 197,917.96 and 79,765.52

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Solution

The fourth proportional to 143,436.24, 197,917.96 and 79,765.52 is: 110,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,436.24 : 197,917.96 = 79,765.52 : x
  2. Step 2: Convert to fraction form
    143,436.24/197,917.96 = 79,765.52/x
  3. Step 3: Cross multiply
    143,436.24x = 197,917.96 × 79,765.52
  4. Step 4: Simplify right side
    143,436.24x = 15,787,028,996.74
  5. Step 5: Solve for x
    x = 15,787,028,996.74/143,436.24
  6. Step 6: Final answer
    x = 110,063.04

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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.