Home / 100,671.03-151,003.05-25,791.80

Finding the Fourth Proportional to 100,671.03, 151,003.05 and 25,791.80

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Solution

The fourth proportional to 100,671.03, 151,003.05 and 25,791.80 is: 38,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,671.03 : 151,003.05 = 25,791.80 : x
  2. Step 2: Convert to fraction form
    100,671.03/151,003.05 = 25,791.80/x
  3. Step 3: Cross multiply
    100,671.03x = 151,003.05 × 25,791.80
  4. Step 4: Simplify right side
    100,671.03x = 3,894,639,709.97
  5. Step 5: Solve for x
    x = 3,894,639,709.97/100,671.03
  6. Step 6: Final answer
    x = 38,686.80

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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.