Home / 100,809.03-151,213.33-29,781.54

Finding the Fourth Proportional to 100,809.03, 151,213.33 and 29,781.54

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Solution

The fourth proportional to 100,809.03, 151,213.33 and 29,781.54 is: 44,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,809.03 : 151,213.33 = 29,781.54 : x
  2. Step 2: Convert to fraction form
    100,809.03/151,213.33 = 29,781.54/x
  3. Step 3: Cross multiply
    100,809.03x = 151,213.33 × 29,781.54
  4. Step 4: Simplify right side
    100,809.03x = 4,503,365,873.16
  5. Step 5: Solve for x
    x = 4,503,365,873.16/100,809.03
  6. Step 6: Final answer
    x = 44,672.25

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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.