Home / 139,734.50-192,882.21-83,144.66

Finding the Fourth Proportional to 139,734.50, 192,882.21 and 83,144.66

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Solution

The fourth proportional to 139,734.50, 192,882.21 and 83,144.66 is: 114,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,734.50 : 192,882.21 = 83,144.66 : x
  2. Step 2: Convert to fraction form
    139,734.50/192,882.21 = 83,144.66/x
  3. Step 3: Cross multiply
    139,734.50x = 192,882.21 × 83,144.66
  4. Step 4: Simplify right side
    139,734.50x = 16,037,125,770.50
  5. Step 5: Solve for x
    x = 16,037,125,770.50/139,734.50
  6. Step 6: Final answer
    x = 114,768.55

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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.