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Finding the Fourth Proportional to 137,357.33, 189,582.41 and 80,800.97

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Solution

The fourth proportional to 137,357.33, 189,582.41 and 80,800.97 is: 111,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,357.33 : 189,582.41 = 80,800.97 : x
  2. Step 2: Convert to fraction form
    137,357.33/189,582.41 = 80,800.97/x
  3. Step 3: Cross multiply
    137,357.33x = 189,582.41 × 80,800.97
  4. Step 4: Simplify right side
    137,357.33x = 15,318,442,218.93
  5. Step 5: Solve for x
    x = 15,318,442,218.93/137,357.33
  6. Step 6: Final answer
    x = 111,522.57

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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.