Home / 172,249.45-258,316.68-72,391.03

Finding the Fourth Proportional to 172,249.45, 258,316.68 and 72,391.03

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Solution

The fourth proportional to 172,249.45, 258,316.68 and 72,391.03 is: 108,562.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,249.45 : 258,316.68 = 72,391.03 : x
  2. Step 2: Convert to fraction form
    172,249.45/258,316.68 = 72,391.03/x
  3. Step 3: Cross multiply
    172,249.45x = 258,316.68 × 72,391.03
  4. Step 4: Simplify right side
    172,249.45x = 18,699,810,531.38
  5. Step 5: Solve for x
    x = 18,699,810,531.38/172,249.45
  6. Step 6: Final answer
    x = 108,562.38

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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.