Home / 112,997.11-155,934.60-65,249.41

Finding the Fourth Proportional to 112,997.11, 155,934.60 and 65,249.41

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Solution

The fourth proportional to 112,997.11, 155,934.60 and 65,249.41 is: 90,043.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,997.11 : 155,934.60 = 65,249.41 : x
  2. Step 2: Convert to fraction form
    112,997.11/155,934.60 = 65,249.41/x
  3. Step 3: Cross multiply
    112,997.11x = 155,934.60 × 65,249.41
  4. Step 4: Simplify right side
    112,997.11x = 10,174,640,648.59
  5. Step 5: Solve for x
    x = 10,174,640,648.59/112,997.11
  6. Step 6: Final answer
    x = 90,043.37

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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.