Home / 172,170.38-258,270.42-47,511.38

Finding the Fourth Proportional to 172,170.38, 258,270.42 and 47,511.38

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Solution

The fourth proportional to 172,170.38, 258,270.42 and 47,511.38 is: 71,271.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,170.38 : 258,270.42 = 47,511.38 : x
  2. Step 2: Convert to fraction form
    172,170.38/258,270.42 = 47,511.38/x
  3. Step 3: Cross multiply
    172,170.38x = 258,270.42 × 47,511.38
  4. Step 4: Simplify right side
    172,170.38x = 12,270,784,067.38
  5. Step 5: Solve for x
    x = 12,270,784,067.38/172,170.38
  6. Step 6: Final answer
    x = 71,271.17

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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.