Home / 68,169.53-102,206.85-30,198.18

Finding the Fourth Proportional to 68,169.53, 102,206.85 and 30,198.18

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Solution

The fourth proportional to 68,169.53, 102,206.85 and 30,198.18 is: 45,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,169.53 : 102,206.85 = 30,198.18 : x
  2. Step 2: Convert to fraction form
    68,169.53/102,206.85 = 30,198.18/x
  3. Step 3: Cross multiply
    68,169.53x = 102,206.85 × 30,198.18
  4. Step 4: Simplify right side
    68,169.53x = 3,086,461,123.57
  5. Step 5: Solve for x
    x = 3,086,461,123.57/68,169.53
  6. Step 6: Final answer
    x = 45,276.25

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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.