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Finding the Fourth Proportional to 169,927.79, 254,891.68 and 80,911.42

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Solution

The fourth proportional to 169,927.79, 254,891.68 and 80,911.42 is: 121,367.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,927.79 : 254,891.68 = 80,911.42 : x
  2. Step 2: Convert to fraction form
    169,927.79/254,891.68 = 80,911.42/x
  3. Step 3: Cross multiply
    169,927.79x = 254,891.68 × 80,911.42
  4. Step 4: Simplify right side
    169,927.79x = 20,623,647,774.99
  5. Step 5: Solve for x
    x = 20,623,647,774.99/169,927.79
  6. Step 6: Final answer
    x = 121,367.13

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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.