Home / 123,203.97-169,867.44-102,815.42

Finding the Fourth Proportional to 123,203.97, 169,867.44 and 102,815.42

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Solution

The fourth proportional to 123,203.97, 169,867.44 and 102,815.42 is: 141,756.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,203.97 : 169,867.44 = 102,815.42 : x
  2. Step 2: Convert to fraction form
    123,203.97/169,867.44 = 102,815.42/x
  3. Step 3: Cross multiply
    123,203.97x = 169,867.44 × 102,815.42
  4. Step 4: Simplify right side
    123,203.97x = 17,464,991,338.59
  5. Step 5: Solve for x
    x = 17,464,991,338.59/123,203.97
  6. Step 6: Final answer
    x = 141,756.73

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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.