Home / 172,429.68-258,408.73-130,275.25

Finding the Fourth Proportional to 172,429.68, 258,408.73 and 130,275.25

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Solution

The fourth proportional to 172,429.68, 258,408.73 and 130,275.25 is: 195,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,429.68 : 258,408.73 = 130,275.25 : x
  2. Step 2: Convert to fraction form
    172,429.68/258,408.73 = 130,275.25/x
  3. Step 3: Cross multiply
    172,429.68x = 258,408.73 × 130,275.25
  4. Step 4: Simplify right side
    172,429.68x = 33,664,261,902.93
  5. Step 5: Solve for x
    x = 33,664,261,902.93/172,429.68
  6. Step 6: Final answer
    x = 195,234.73

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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.