Home / 172,388.95-237,745.33-120,679.56

Finding the Fourth Proportional to 172,388.95, 237,745.33 and 120,679.56

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Solution

The fourth proportional to 172,388.95, 237,745.33 and 120,679.56 is: 166,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,388.95 : 237,745.33 = 120,679.56 : x
  2. Step 2: Convert to fraction form
    172,388.95/237,745.33 = 120,679.56/x
  3. Step 3: Cross multiply
    172,388.95x = 237,745.33 × 120,679.56
  4. Step 4: Simplify right side
    172,388.95x = 28,691,001,514.76
  5. Step 5: Solve for x
    x = 28,691,001,514.76/172,388.95
  6. Step 6: Final answer
    x = 166,431.79

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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.