Home / 103,180.46-154,770.68-68,111.91

Finding the Fourth Proportional to 103,180.46, 154,770.68 and 68,111.91

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Solution

The fourth proportional to 103,180.46, 154,770.68 and 68,111.91 is: 102,167.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,180.46 : 154,770.68 = 68,111.91 : x
  2. Step 2: Convert to fraction form
    103,180.46/154,770.68 = 68,111.91/x
  3. Step 3: Cross multiply
    103,180.46x = 154,770.68 × 68,111.91
  4. Step 4: Simplify right side
    103,180.46x = 10,541,726,286.24
  5. Step 5: Solve for x
    x = 10,541,726,286.24/103,180.46
  6. Step 6: Final answer
    x = 102,167.86

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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.