Home / 200,121.10-300,251.97-125,156.14

Finding the Fourth Proportional to 200,121.10, 300,251.97 and 125,156.14

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Solution

The fourth proportional to 200,121.10, 300,251.97 and 125,156.14 is: 187,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,121.10 : 300,251.97 = 125,156.14 : x
  2. Step 2: Convert to fraction form
    200,121.10/300,251.97 = 125,156.14/x
  3. Step 3: Cross multiply
    200,121.10x = 300,251.97 × 125,156.14
  4. Step 4: Simplify right side
    200,121.10x = 37,578,377,592.60
  5. Step 5: Solve for x
    x = 37,578,377,592.60/200,121.10
  6. Step 6: Final answer
    x = 187,778.19

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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.