Home / 103,175.80-154,763.74-68,107.24

Finding the Fourth Proportional to 103,175.80, 154,763.74 and 68,107.24

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Solution

The fourth proportional to 103,175.80, 154,763.74 and 68,107.24 is: 102,160.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,175.80 : 154,763.74 = 68,107.24 : x
  2. Step 2: Convert to fraction form
    103,175.80/154,763.74 = 68,107.24/x
  3. Step 3: Cross multiply
    103,175.80x = 154,763.74 × 68,107.24
  4. Step 4: Simplify right side
    103,175.80x = 10,540,531,183.48
  5. Step 5: Solve for x
    x = 10,540,531,183.48/103,175.80
  6. Step 6: Final answer
    x = 102,160.89

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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.