Home / 136,134.82-187,882.80-82,438.51

Finding the Fourth Proportional to 136,134.82, 187,882.80 and 82,438.51

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Solution

The fourth proportional to 136,134.82, 187,882.80 and 82,438.51 is: 113,775.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,134.82 : 187,882.80 = 82,438.51 : x
  2. Step 2: Convert to fraction form
    136,134.82/187,882.80 = 82,438.51/x
  3. Step 3: Cross multiply
    136,134.82x = 187,882.80 × 82,438.51
  4. Step 4: Simplify right side
    136,134.82x = 15,488,778,086.63
  5. Step 5: Solve for x
    x = 15,488,778,086.63/136,134.82
  6. Step 6: Final answer
    x = 113,775.29

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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.