Home / 116,956.53-161,418.20-76,786.80

Finding the Fourth Proportional to 116,956.53, 161,418.20 and 76,786.80

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Solution

The fourth proportional to 116,956.53, 161,418.20 and 76,786.80 is: 105,977.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,956.53 : 161,418.20 = 76,786.80 : x
  2. Step 2: Convert to fraction form
    116,956.53/161,418.20 = 76,786.80/x
  3. Step 3: Cross multiply
    116,956.53x = 161,418.20 × 76,786.80
  4. Step 4: Simplify right side
    116,956.53x = 12,394,787,039.76
  5. Step 5: Solve for x
    x = 12,394,787,039.76/116,956.53
  6. Step 6: Final answer
    x = 105,977.73

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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.