Home / 143,286.82-197,742.54-79,625.14

Finding the Fourth Proportional to 143,286.82, 197,742.54 and 79,625.14

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Solution

The fourth proportional to 143,286.82, 197,742.54 and 79,625.14 is: 109,886.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,286.82 : 197,742.54 = 79,625.14 : x
  2. Step 2: Convert to fraction form
    143,286.82/197,742.54 = 79,625.14/x
  3. Step 3: Cross multiply
    143,286.82x = 197,742.54 × 79,625.14
  4. Step 4: Simplify right side
    143,286.82x = 15,745,277,431.46
  5. Step 5: Solve for x
    x = 15,745,277,431.46/143,286.82
  6. Step 6: Final answer
    x = 109,886.43

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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.