Home / 109,251.22-163,974.51-55,979.54

Finding the Fourth Proportional to 109,251.22, 163,974.51 and 55,979.54

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Solution

The fourth proportional to 109,251.22, 163,974.51 and 55,979.54 is: 84,019.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,251.22 : 163,974.51 = 55,979.54 : x
  2. Step 2: Convert to fraction form
    109,251.22/163,974.51 = 55,979.54/x
  3. Step 3: Cross multiply
    109,251.22x = 163,974.51 × 55,979.54
  4. Step 4: Simplify right side
    109,251.22x = 9,179,217,641.53
  5. Step 5: Solve for x
    x = 9,179,217,641.53/109,251.22
  6. Step 6: Final answer
    x = 84,019.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.