Home / 168,022.50-231,821.60-100,005.26

Finding the Fourth Proportional to 168,022.50, 231,821.60 and 100,005.26

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Solution

The fourth proportional to 168,022.50, 231,821.60 and 100,005.26 is: 137,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,022.50 : 231,821.60 = 100,005.26 : x
  2. Step 2: Convert to fraction form
    168,022.50/231,821.60 = 100,005.26/x
  3. Step 3: Cross multiply
    168,022.50x = 231,821.60 × 100,005.26
  4. Step 4: Simplify right side
    168,022.50x = 23,183,379,381.62
  5. Step 5: Solve for x
    x = 23,183,379,381.62/168,022.50
  6. Step 6: Final answer
    x = 137,977.83

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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.