Home / 99,930.82-137,904.94-54,608.68

Finding the Fourth Proportional to 99,930.82, 137,904.94 and 54,608.68

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Solution

The fourth proportional to 99,930.82, 137,904.94 and 54,608.68 is: 75,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,930.82 : 137,904.94 = 54,608.68 : x
  2. Step 2: Convert to fraction form
    99,930.82/137,904.94 = 54,608.68/x
  3. Step 3: Cross multiply
    99,930.82x = 137,904.94 × 54,608.68
  4. Step 4: Simplify right side
    99,930.82x = 7,530,806,738.88
  5. Step 5: Solve for x
    x = 7,530,806,738.88/99,930.82
  6. Step 6: Final answer
    x = 75,360.20

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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.