Home / 172,537.62-258,917.04-83,742.72

Finding the Fourth Proportional to 172,537.62, 258,917.04 and 83,742.72

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Solution

The fourth proportional to 172,537.62, 258,917.04 and 83,742.72 is: 125,667.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,537.62 : 258,917.04 = 83,742.72 : x
  2. Step 2: Convert to fraction form
    172,537.62/258,917.04 = 83,742.72/x
  3. Step 3: Cross multiply
    172,537.62x = 258,917.04 × 83,742.72
  4. Step 4: Simplify right side
    172,537.62x = 21,682,417,183.95
  5. Step 5: Solve for x
    x = 21,682,417,183.95/172,537.62
  6. Step 6: Final answer
    x = 125,667.77

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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.