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Finding the Fourth Proportional to 188,123.73, 259,536.84 and 107,508

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Solution

The fourth proportional to 188,123.73, 259,536.84 and 107,508 is: 148,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,123.73 : 259,536.84 = 107,508 : x
  2. Step 2: Convert to fraction form
    188,123.73/259,536.84 = 107,508/x
  3. Step 3: Cross multiply
    188,123.73x = 259,536.84 × 107,508
  4. Step 4: Simplify right side
    188,123.73x = 27,902,286,057.18
  5. Step 5: Solve for x
    x = 27,902,286,057.18/188,123.73
  6. Step 6: Final answer
    x = 148,318.80

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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.