Home / 139,539.52-192,496.86-82,910.80

Finding the Fourth Proportional to 139,539.52, 192,496.86 and 82,910.80

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Solution

The fourth proportional to 139,539.52, 192,496.86 and 82,910.80 is: 114,376.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,539.52 : 192,496.86 = 82,910.80 : x
  2. Step 2: Convert to fraction form
    139,539.52/192,496.86 = 82,910.80/x
  3. Step 3: Cross multiply
    139,539.52x = 192,496.86 × 82,910.80
  4. Step 4: Simplify right side
    139,539.52x = 15,960,068,660.09
  5. Step 5: Solve for x
    x = 15,960,068,660.09/139,539.52
  6. Step 6: Final answer
    x = 114,376.69

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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.