Home / 188,212.77-259,735.49-102,172.42

Finding the Fourth Proportional to 188,212.77, 259,735.49 and 102,172.42

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Solution

The fourth proportional to 188,212.77, 259,735.49 and 102,172.42 is: 140,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,212.77 : 259,735.49 = 102,172.42 : x
  2. Step 2: Convert to fraction form
    188,212.77/259,735.49 = 102,172.42/x
  3. Step 3: Cross multiply
    188,212.77x = 259,735.49 × 102,172.42
  4. Step 4: Simplify right side
    188,212.77x = 26,537,803,179.28
  5. Step 5: Solve for x
    x = 26,537,803,179.28/188,212.77
  6. Step 6: Final answer
    x = 140,998.95

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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.