Home / 198,139.27-273,367.56-112,089.94

Finding the Fourth Proportional to 198,139.27, 273,367.56 and 112,089.94

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Solution

The fourth proportional to 198,139.27, 273,367.56 and 112,089.94 is: 154,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,139.27 : 273,367.56 = 112,089.94 : x
  2. Step 2: Convert to fraction form
    198,139.27/273,367.56 = 112,089.94/x
  3. Step 3: Cross multiply
    198,139.27x = 273,367.56 × 112,089.94
  4. Step 4: Simplify right side
    198,139.27x = 30,641,753,398.35
  5. Step 5: Solve for x
    x = 30,641,753,398.35/198,139.27
  6. Step 6: Final answer
    x = 154,647.55

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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.