Home / 196,419.78-271,046.52-115,828.80

Finding the Fourth Proportional to 196,419.78, 271,046.52 and 115,828.80

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Solution

The fourth proportional to 196,419.78, 271,046.52 and 115,828.80 is: 159,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,419.78 : 271,046.52 = 115,828.80 : x
  2. Step 2: Convert to fraction form
    196,419.78/271,046.52 = 115,828.80/x
  3. Step 3: Cross multiply
    196,419.78x = 271,046.52 × 115,828.80
  4. Step 4: Simplify right side
    196,419.78x = 31,394,993,155.78
  5. Step 5: Solve for x
    x = 31,394,993,155.78/196,419.78
  6. Step 6: Final answer
    x = 159,836.21

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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.