Home / 136,647.25-188,494.26-82,161.57

Finding the Fourth Proportional to 136,647.25, 188,494.26 and 82,161.57

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Solution

The fourth proportional to 136,647.25, 188,494.26 and 82,161.57 is: 113,335.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,647.25 : 188,494.26 = 82,161.57 : x
  2. Step 2: Convert to fraction form
    136,647.25/188,494.26 = 82,161.57/x
  3. Step 3: Cross multiply
    136,647.25x = 188,494.26 × 82,161.57
  4. Step 4: Simplify right side
    136,647.25x = 15,486,984,337.59
  5. Step 5: Solve for x
    x = 15,486,984,337.59/136,647.25
  6. Step 6: Final answer
    x = 113,335.50

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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.