Home / 123,286.11-170,136.23-69,571.77

Finding the Fourth Proportional to 123,286.11, 170,136.23 and 69,571.77

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Solution

The fourth proportional to 123,286.11, 170,136.23 and 69,571.77 is: 96,009.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,286.11 : 170,136.23 = 69,571.77 : x
  2. Step 2: Convert to fraction form
    123,286.11/170,136.23 = 69,571.77/x
  3. Step 3: Cross multiply
    123,286.11x = 170,136.23 × 69,571.77
  4. Step 4: Simplify right side
    123,286.11x = 11,836,678,314.37
  5. Step 5: Solve for x
    x = 11,836,678,314.37/123,286.11
  6. Step 6: Final answer
    x = 96,009.83

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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.