Home / 123,321.05-170,183.49-66,732.42

Finding the Fourth Proportional to 123,321.05, 170,183.49 and 66,732.42

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Solution

The fourth proportional to 123,321.05, 170,183.49 and 66,732.42 is: 92,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,321.05 : 170,183.49 = 66,732.42 : x
  2. Step 2: Convert to fraction form
    123,321.05/170,183.49 = 66,732.42/x
  3. Step 3: Cross multiply
    123,321.05x = 170,183.49 × 66,732.42
  4. Step 4: Simplify right side
    123,321.05x = 11,356,756,131.75
  5. Step 5: Solve for x
    x = 11,356,756,131.75/123,321.05
  6. Step 6: Final answer
    x = 92,090.98

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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.