Home / 98,211.89-135,535.66-55,198.86

Finding the Fourth Proportional to 98,211.89, 135,535.66 and 55,198.86

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Solution

The fourth proportional to 98,211.89, 135,535.66 and 55,198.86 is: 76,176.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,211.89 : 135,535.66 = 55,198.86 : x
  2. Step 2: Convert to fraction form
    98,211.89/135,535.66 = 55,198.86/x
  3. Step 3: Cross multiply
    98,211.89x = 135,535.66 × 55,198.86
  4. Step 4: Simplify right side
    98,211.89x = 7,481,413,783.35
  5. Step 5: Solve for x
    x = 7,481,413,783.35/98,211.89
  6. Step 6: Final answer
    x = 76,176.26

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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.