Home / 100,540.76-150,811.04-25,660.91

Finding the Fourth Proportional to 100,540.76, 150,811.04 and 25,660.91

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Solution

The fourth proportional to 100,540.76, 150,811.04 and 25,660.91 is: 38,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,540.76 : 150,811.04 = 25,660.91 : x
  2. Step 2: Convert to fraction form
    100,540.76/150,811.04 = 25,660.91/x
  3. Step 3: Cross multiply
    100,540.76x = 150,811.04 × 25,660.91
  4. Step 4: Simplify right side
    100,540.76x = 3,869,948,965.63
  5. Step 5: Solve for x
    x = 3,869,948,965.63/100,540.76
  6. Step 6: Final answer
    x = 38,491.35

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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.