Home / 135,974.20-187,592.02-100,249.16

Finding the Fourth Proportional to 135,974.20, 187,592.02 and 100,249.16

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Solution

The fourth proportional to 135,974.20, 187,592.02 and 100,249.16 is: 138,305.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,974.20 : 187,592.02 = 100,249.16 : x
  2. Step 2: Convert to fraction form
    135,974.20/187,592.02 = 100,249.16/x
  3. Step 3: Cross multiply
    135,974.20x = 187,592.02 × 100,249.16
  4. Step 4: Simplify right side
    135,974.20x = 18,805,942,427.70
  5. Step 5: Solve for x
    x = 18,805,942,427.70/135,974.20
  6. Step 6: Final answer
    x = 138,305.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.