Home / 139,747.14-192,845.88-76,083.66

Finding the Fourth Proportional to 139,747.14, 192,845.88 and 76,083.66

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Solution

The fourth proportional to 139,747.14, 192,845.88 and 76,083.66 is: 104,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,747.14 : 192,845.88 = 76,083.66 : x
  2. Step 2: Convert to fraction form
    139,747.14/192,845.88 = 76,083.66/x
  3. Step 3: Cross multiply
    139,747.14x = 192,845.88 × 76,083.66
  4. Step 4: Simplify right side
    139,747.14x = 14,672,420,366.32
  5. Step 5: Solve for x
    x = 14,672,420,366.32/139,747.14
  6. Step 6: Final answer
    x = 104,992.63

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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.