Home / 196,833.88-271,675.05-128,811.44

Finding the Fourth Proportional to 196,833.88, 271,675.05 and 128,811.44

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Solution

The fourth proportional to 196,833.88, 271,675.05 and 128,811.44 is: 177,788.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,833.88 : 271,675.05 = 128,811.44 : x
  2. Step 2: Convert to fraction form
    196,833.88/271,675.05 = 128,811.44/x
  3. Step 3: Cross multiply
    196,833.88x = 271,675.05 × 128,811.44
  4. Step 4: Simplify right side
    196,833.88x = 34,994,853,044.20
  5. Step 5: Solve for x
    x = 34,994,853,044.20/196,833.88
  6. Step 6: Final answer
    x = 177,788.77

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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.