Home / 126,173.85-188,874.33-81,712.14

Finding the Fourth Proportional to 126,173.85, 188,874.33 and 81,712.14

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Solution

The fourth proportional to 126,173.85, 188,874.33 and 81,712.14 is: 122,317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,173.85 : 188,874.33 = 81,712.14 : x
  2. Step 2: Convert to fraction form
    126,173.85/188,874.33 = 81,712.14/x
  3. Step 3: Cross multiply
    126,173.85x = 188,874.33 × 81,712.14
  4. Step 4: Simplify right side
    126,173.85x = 15,433,325,695.37
  5. Step 5: Solve for x
    x = 15,433,325,695.37/126,173.85
  6. Step 6: Final answer
    x = 122,317.94

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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.