Home / 100,851.56-151,293.75-29,781.37

Finding the Fourth Proportional to 100,851.56, 151,293.75 and 29,781.37

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Solution

The fourth proportional to 100,851.56, 151,293.75 and 29,781.37 is: 44,676.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,851.56 : 151,293.75 = 29,781.37 : x
  2. Step 2: Convert to fraction form
    100,851.56/151,293.75 = 29,781.37/x
  3. Step 3: Cross multiply
    100,851.56x = 151,293.75 × 29,781.37
  4. Step 4: Simplify right side
    100,851.56x = 4,505,735,336.55
  5. Step 5: Solve for x
    x = 4,505,735,336.55/100,851.56
  6. Step 6: Final answer
    x = 44,676.90

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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.