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Finding the Fourth Proportional to 101,172.48, 151,851.96 and 51,288

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Solution

The fourth proportional to 101,172.48, 151,851.96 and 51,288 is: 76,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,172.48 : 151,851.96 = 51,288 : x
  2. Step 2: Convert to fraction form
    101,172.48/151,851.96 = 51,288/x
  3. Step 3: Cross multiply
    101,172.48x = 151,851.96 × 51,288
  4. Step 4: Simplify right side
    101,172.48x = 7,788,183,324.48
  5. Step 5: Solve for x
    x = 7,788,183,324.48/101,172.48
  6. Step 6: Final answer
    x = 76,979.27

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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.