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Finding the Fourth Proportional to 181,301.76, 250,204.22 and 100,729.28

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Solution

The fourth proportional to 181,301.76, 250,204.22 and 100,729.28 is: 139,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,301.76 : 250,204.22 = 100,729.28 : x
  2. Step 2: Convert to fraction form
    181,301.76/250,204.22 = 100,729.28/x
  3. Step 3: Cross multiply
    181,301.76x = 250,204.22 × 100,729.28
  4. Step 4: Simplify right side
    181,301.76x = 25,202,890,933.56
  5. Step 5: Solve for x
    x = 25,202,890,933.56/181,301.76
  6. Step 6: Final answer
    x = 139,010.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.