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Finding the Fourth Proportional to 126,253.89, 188,913.06 and 101,218.21

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Solution

The fourth proportional to 126,253.89, 188,913.06 and 101,218.21 is: 151,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,253.89 : 188,913.06 = 101,218.21 : x
  2. Step 2: Convert to fraction form
    126,253.89/188,913.06 = 101,218.21/x
  3. Step 3: Cross multiply
    126,253.89x = 188,913.06 × 101,218.21
  4. Step 4: Simplify right side
    126,253.89x = 19,121,441,306.54
  5. Step 5: Solve for x
    x = 19,121,441,306.54/126,253.89
  6. Step 6: Final answer
    x = 151,452.29

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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.