Home / 192,992.12-289,570.80-80,698.58

Finding the Fourth Proportional to 192,992.12, 289,570.80 and 80,698.58

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Solution

The fourth proportional to 192,992.12, 289,570.80 and 80,698.58 is: 121,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,992.12 : 289,570.80 = 80,698.58 : x
  2. Step 2: Convert to fraction form
    192,992.12/289,570.80 = 80,698.58/x
  3. Step 3: Cross multiply
    192,992.12x = 289,570.80 × 80,698.58
  4. Step 4: Simplify right side
    192,992.12x = 23,367,952,369.46
  5. Step 5: Solve for x
    x = 23,367,952,369.46/192,992.12
  6. Step 6: Final answer
    x = 121,082.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.