Home / 123,039.24-169,794.18-66,450.63

Finding the Fourth Proportional to 123,039.24, 169,794.18 and 66,450.63

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Solution

The fourth proportional to 123,039.24, 169,794.18 and 66,450.63 is: 91,701.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,039.24 : 169,794.18 = 66,450.63 : x
  2. Step 2: Convert to fraction form
    123,039.24/169,794.18 = 66,450.63/x
  3. Step 3: Cross multiply
    123,039.24x = 169,794.18 × 66,450.63
  4. Step 4: Simplify right side
    123,039.24x = 11,282,930,231.33
  5. Step 5: Solve for x
    x = 11,282,930,231.33/123,039.24
  6. Step 6: Final answer
    x = 91,701.88

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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.