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Finding the Fourth Proportional to 181,010.40, 271,645.20 and 75,904.80

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Solution

The fourth proportional to 181,010.40, 271,645.20 and 75,904.80 is: 113,911.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,010.40 : 271,645.20 = 75,904.80 : x
  2. Step 2: Convert to fraction form
    181,010.40/271,645.20 = 75,904.80/x
  3. Step 3: Cross multiply
    181,010.40x = 271,645.20 × 75,904.80
  4. Step 4: Simplify right side
    181,010.40x = 20,619,174,576.96
  5. Step 5: Solve for x
    x = 20,619,174,576.96/181,010.40
  6. Step 6: Final answer
    x = 113,911.55

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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.