Home / 123,249.46-170,084.34-66,660.82

Finding the Fourth Proportional to 123,249.46, 170,084.34 and 66,660.82

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Solution

The fourth proportional to 123,249.46, 170,084.34 and 66,660.82 is: 91,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,249.46 : 170,084.34 = 66,660.82 : x
  2. Step 2: Convert to fraction form
    123,249.46/170,084.34 = 66,660.82/x
  3. Step 3: Cross multiply
    123,249.46x = 170,084.34 × 66,660.82
  4. Step 4: Simplify right side
    123,249.46x = 11,337,961,573.56
  5. Step 5: Solve for x
    x = 11,337,961,573.56/123,249.46
  6. Step 6: Final answer
    x = 91,991.98

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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.