Home / 139,740.14-192,836.22-76,076.66

Finding the Fourth Proportional to 139,740.14, 192,836.22 and 76,076.66

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Solution

The fourth proportional to 139,740.14, 192,836.22 and 76,076.66 is: 104,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,740.14 : 192,836.22 = 76,076.66 : x
  2. Step 2: Convert to fraction form
    139,740.14/192,836.22 = 76,076.66/x
  3. Step 3: Cross multiply
    139,740.14x = 192,836.22 × 76,076.66
  4. Step 4: Simplify right side
    139,740.14x = 14,670,335,544.63
  5. Step 5: Solve for x
    x = 14,670,335,544.63/139,740.14
  6. Step 6: Final answer
    x = 104,982.97

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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.