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Finding the Fourth Proportional to 129,850, 179,193 and 70,234

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Solution

The fourth proportional to 129,850, 179,193 and 70,234 is: 96,922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,850 : 179,193 = 70,234 : x
  2. Step 2: Convert to fraction form
    129,850/179,193 = 70,234/x
  3. Step 3: Cross multiply
    129,850x = 179,193 × 70,234
  4. Step 4: Simplify right side
    129,850x = 12,585,441,162
  5. Step 5: Solve for x
    x = 12,585,441,162/129,850
  6. Step 6: Final answer
    x = 96,922.92

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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.