Home / 188,942.78-260,735.72-102,899.82

Finding the Fourth Proportional to 188,942.78, 260,735.72 and 102,899.82

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Solution

The fourth proportional to 188,942.78, 260,735.72 and 102,899.82 is: 141,998.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,942.78 : 260,735.72 = 102,899.82 : x
  2. Step 2: Convert to fraction form
    188,942.78/260,735.72 = 102,899.82/x
  3. Step 3: Cross multiply
    188,942.78x = 260,735.72 × 102,899.82
  4. Step 4: Simplify right side
    188,942.78x = 26,829,658,655.57
  5. Step 5: Solve for x
    x = 26,829,658,655.57/188,942.78
  6. Step 6: Final answer
    x = 141,998.86

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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.