Home / 100,615.20-150,921.25-25,734.68

Finding the Fourth Proportional to 100,615.20, 150,921.25 and 25,734.68

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Solution

The fourth proportional to 100,615.20, 150,921.25 and 25,734.68 is: 38,601.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,615.20 : 150,921.25 = 25,734.68 : x
  2. Step 2: Convert to fraction form
    100,615.20/150,921.25 = 25,734.68/x
  3. Step 3: Cross multiply
    100,615.20x = 150,921.25 × 25,734.68
  4. Step 4: Simplify right side
    100,615.20x = 3,883,910,386.92
  5. Step 5: Solve for x
    x = 3,883,910,386.92/100,615.20
  6. Step 6: Final answer
    x = 38,601.63

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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.