Home / 125,691.38-188,556.78-45,736.28

Finding the Fourth Proportional to 125,691.38, 188,556.78 and 45,736.28

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Solution

The fourth proportional to 125,691.38, 188,556.78 and 45,736.28 is: 68,611.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,691.38 : 188,556.78 = 45,736.28 : x
  2. Step 2: Convert to fraction form
    125,691.38/188,556.78 = 45,736.28/x
  3. Step 3: Cross multiply
    125,691.38x = 188,556.78 × 45,736.28
  4. Step 4: Simplify right side
    125,691.38x = 8,623,885,685.98
  5. Step 5: Solve for x
    x = 8,623,885,685.98/125,691.38
  6. Step 6: Final answer
    x = 68,611.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.