Home / 140,811.12-194,314.68-84,193.20

Finding the Fourth Proportional to 140,811.12, 194,314.68 and 84,193.20

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Solution

The fourth proportional to 140,811.12, 194,314.68 and 84,193.20 is: 116,183.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,811.12 : 194,314.68 = 84,193.20 : x
  2. Step 2: Convert to fraction form
    140,811.12/194,314.68 = 84,193.20/x
  3. Step 3: Cross multiply
    140,811.12x = 194,314.68 × 84,193.20
  4. Step 4: Simplify right side
    140,811.12x = 16,359,974,716.18
  5. Step 5: Solve for x
    x = 16,359,974,716.18/140,811.12
  6. Step 6: Final answer
    x = 116,183.83

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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.