Home / 136,388.84-188,233.79-82,667.03

Finding the Fourth Proportional to 136,388.84, 188,233.79 and 82,667.03

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Solution

The fourth proportional to 136,388.84, 188,233.79 and 82,667.03 is: 114,090.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,388.84 : 188,233.79 = 82,667.03 : x
  2. Step 2: Convert to fraction form
    136,388.84/188,233.79 = 82,667.03/x
  3. Step 3: Cross multiply
    136,388.84x = 188,233.79 × 82,667.03
  4. Step 4: Simplify right side
    136,388.84x = 15,560,727,010.44
  5. Step 5: Solve for x
    x = 15,560,727,010.44/136,388.84
  6. Step 6: Final answer
    x = 114,090.92

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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.