Home / 139,736.82-192,836.67-76,074.62

Finding the Fourth Proportional to 139,736.82, 192,836.67 and 76,074.62

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Solution

The fourth proportional to 139,736.82, 192,836.67 and 76,074.62 is: 104,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,736.82 : 192,836.67 = 76,074.62 : x
  2. Step 2: Convert to fraction form
    139,736.82/192,836.67 = 76,074.62/x
  3. Step 3: Cross multiply
    139,736.82x = 192,836.67 × 76,074.62
  4. Step 4: Simplify right side
    139,736.82x = 14,669,975,428.13
  5. Step 5: Solve for x
    x = 14,669,975,428.13/139,736.82
  6. Step 6: Final answer
    x = 104,982.89

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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.