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Finding the Fourth Proportional to 179,310, 269,131.20 and 90,625.92

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Solution

The fourth proportional to 179,310, 269,131.20 and 90,625.92 is: 136,022.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,310 : 269,131.20 = 90,625.92 : x
  2. Step 2: Convert to fraction form
    179,310/269,131.20 = 90,625.92/x
  3. Step 3: Cross multiply
    179,310x = 269,131.20 × 90,625.92
  4. Step 4: Simplify right side
    179,310x = 24,390,262,600.70
  5. Step 5: Solve for x
    x = 24,390,262,600.70/179,310
  6. Step 6: Final answer
    x = 136,022.88

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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.