Home / 123,400.44-170,292.62-66,811.80

Finding the Fourth Proportional to 123,400.44, 170,292.62 and 66,811.80

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Solution

The fourth proportional to 123,400.44, 170,292.62 and 66,811.80 is: 92,200.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,400.44 : 170,292.62 = 66,811.80 : x
  2. Step 2: Convert to fraction form
    123,400.44/170,292.62 = 66,811.80/x
  3. Step 3: Cross multiply
    123,400.44x = 170,292.62 × 66,811.80
  4. Step 4: Simplify right side
    123,400.44x = 11,377,556,468.92
  5. Step 5: Solve for x
    x = 11,377,556,468.92/123,400.44
  6. Step 6: Final answer
    x = 92,200.29

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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.