Home / 200,072.20-299,705.10-124,961.80

Finding the Fourth Proportional to 200,072.20, 299,705.10 and 124,961.80

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Solution

The fourth proportional to 200,072.20, 299,705.10 and 124,961.80 is: 187,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,072.20 : 299,705.10 = 124,961.80 : x
  2. Step 2: Convert to fraction form
    200,072.20/299,705.10 = 124,961.80/x
  3. Step 3: Cross multiply
    200,072.20x = 299,705.10 × 124,961.80
  4. Step 4: Simplify right side
    200,072.20x = 37,451,688,765.18
  5. Step 5: Solve for x
    x = 37,451,688,765.18/200,072.20
  6. Step 6: Final answer
    x = 187,190.87

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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.