Home / 169,850.78-234,446.24-109,421.21

Finding the Fourth Proportional to 169,850.78, 234,446.24 and 109,421.21

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Solution

The fourth proportional to 169,850.78, 234,446.24 and 109,421.21 is: 151,034.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,850.78 : 234,446.24 = 109,421.21 : x
  2. Step 2: Convert to fraction form
    169,850.78/234,446.24 = 109,421.21/x
  3. Step 3: Cross multiply
    169,850.78x = 234,446.24 × 109,421.21
  4. Step 4: Simplify right side
    169,850.78x = 25,653,390,493.91
  5. Step 5: Solve for x
    x = 25,653,390,493.91/169,850.78
  6. Step 6: Final answer
    x = 151,034.87

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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.