Home / 139,331.09-192,293.33-82,742.47

Finding the Fourth Proportional to 139,331.09, 192,293.33 and 82,742.47

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Solution

The fourth proportional to 139,331.09, 192,293.33 and 82,742.47 is: 114,194.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,331.09 : 192,293.33 = 82,742.47 : x
  2. Step 2: Convert to fraction form
    139,331.09/192,293.33 = 82,742.47/x
  3. Step 3: Cross multiply
    139,331.09x = 192,293.33 × 82,742.47
  4. Step 4: Simplify right side
    139,331.09x = 15,910,824,194.28
  5. Step 5: Solve for x
    x = 15,910,824,194.28/139,331.09
  6. Step 6: Final answer
    x = 114,194.35

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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.