Home / 97,961.76-146,826-68,218.56

Finding the Fourth Proportional to 97,961.76, 146,826 and 68,218.56

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Solution

The fourth proportional to 97,961.76, 146,826 and 68,218.56 is: 102,246.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,961.76 : 146,826 = 68,218.56 : x
  2. Step 2: Convert to fraction form
    97,961.76/146,826 = 68,218.56/x
  3. Step 3: Cross multiply
    97,961.76x = 146,826 × 68,218.56
  4. Step 4: Simplify right side
    97,961.76x = 10,016,258,290.56
  5. Step 5: Solve for x
    x = 10,016,258,290.56/97,961.76
  6. Step 6: Final answer
    x = 102,246.61

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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.