Home / 168,716.12-252,990.72-56,357.78

Finding the Fourth Proportional to 168,716.12, 252,990.72 and 56,357.78

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Solution

The fourth proportional to 168,716.12, 252,990.72 and 56,357.78 is: 84,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,716.12 : 252,990.72 = 56,357.78 : x
  2. Step 2: Convert to fraction form
    168,716.12/252,990.72 = 56,357.78/x
  3. Step 3: Cross multiply
    168,716.12x = 252,990.72 × 56,357.78
  4. Step 4: Simplify right side
    168,716.12x = 14,257,994,074.85
  5. Step 5: Solve for x
    x = 14,257,994,074.85/168,716.12
  6. Step 6: Final answer
    x = 84,508.79

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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.