Home / 123,422.45-170,322.68-66,833.82

Finding the Fourth Proportional to 123,422.45, 170,322.68 and 66,833.82

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Solution

The fourth proportional to 123,422.45, 170,322.68 and 66,833.82 is: 92,230.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,422.45 : 170,322.68 = 66,833.82 : x
  2. Step 2: Convert to fraction form
    123,422.45/170,322.68 = 66,833.82/x
  3. Step 3: Cross multiply
    123,422.45x = 170,322.68 × 66,833.82
  4. Step 4: Simplify right side
    123,422.45x = 11,383,315,002.87
  5. Step 5: Solve for x
    x = 11,383,315,002.87/123,422.45
  6. Step 6: Final answer
    x = 92,230.51

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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.