Home / 117,139.21-175,778.78-107,610.57

Finding the Fourth Proportional to 117,139.21, 175,778.78 and 107,610.57

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Solution

The fourth proportional to 117,139.21, 175,778.78 and 107,610.57 is: 161,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,139.21 : 175,778.78 = 107,610.57 : x
  2. Step 2: Convert to fraction form
    117,139.21/175,778.78 = 107,610.57/x
  3. Step 3: Cross multiply
    117,139.21x = 175,778.78 × 107,610.57
  4. Step 4: Simplify right side
    117,139.21x = 18,915,654,171.65
  5. Step 5: Solve for x
    x = 18,915,654,171.65/117,139.21
  6. Step 6: Final answer
    x = 161,480.13

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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.