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Finding the Fourth Proportional to 123,022.92, 169,799.22 and 80,556.78

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Solution

The fourth proportional to 123,022.92, 169,799.22 and 80,556.78 is: 111,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,022.92 : 169,799.22 = 80,556.78 : x
  2. Step 2: Convert to fraction form
    123,022.92/169,799.22 = 80,556.78/x
  3. Step 3: Cross multiply
    123,022.92x = 169,799.22 × 80,556.78
  4. Step 4: Simplify right side
    123,022.92x = 13,678,478,409.71
  5. Step 5: Solve for x
    x = 13,678,478,409.71/123,022.92
  6. Step 6: Final answer
    x = 111,186.42

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1.5x scale

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.