Home / 209,519.96-289,198.58-136,933.43

Finding the Fourth Proportional to 209,519.96, 289,198.58 and 136,933.43

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Solution

The fourth proportional to 209,519.96, 289,198.58 and 136,933.43 is: 189,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,519.96 : 289,198.58 = 136,933.43 : x
  2. Step 2: Convert to fraction form
    209,519.96/289,198.58 = 136,933.43/x
  3. Step 3: Cross multiply
    209,519.96x = 289,198.58 × 136,933.43
  4. Step 4: Simplify right side
    209,519.96x = 39,600,951,379.87
  5. Step 5: Solve for x
    x = 39,600,951,379.87/209,519.96
  6. Step 6: Final answer
    x = 189,008.02

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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.