Home / 136,148.82-187,882.11-74,057.73

Finding the Fourth Proportional to 136,148.82, 187,882.11 and 74,057.73

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Solution

The fourth proportional to 136,148.82, 187,882.11 and 74,057.73 is: 102,197.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,148.82 : 187,882.11 = 74,057.73 : x
  2. Step 2: Convert to fraction form
    136,148.82/187,882.11 = 74,057.73/x
  3. Step 3: Cross multiply
    136,148.82x = 187,882.11 × 74,057.73
  4. Step 4: Simplify right side
    136,148.82x = 13,914,122,574.21
  5. Step 5: Solve for x
    x = 13,914,122,574.21/136,148.82
  6. Step 6: Final answer
    x = 102,197.89

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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.