Home / 172,321.05-258,481.68-54,001.65

Finding the Fourth Proportional to 172,321.05, 258,481.68 and 54,001.65

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Solution

The fourth proportional to 172,321.05, 258,481.68 and 54,001.65 is: 81,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,321.05 : 258,481.68 = 54,001.65 : x
  2. Step 2: Convert to fraction form
    172,321.05/258,481.68 = 54,001.65/x
  3. Step 3: Cross multiply
    172,321.05x = 258,481.68 × 54,001.65
  4. Step 4: Simplify right side
    172,321.05x = 13,958,437,214.77
  5. Step 5: Solve for x
    x = 13,958,437,214.77/172,321.05
  6. Step 6: Final answer
    x = 81,002.51

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1.5x scale

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.