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Finding the Fourth Proportional to 101,181.33, 151,865.28 and 51,296.40

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Solution

The fourth proportional to 101,181.33, 151,865.28 and 51,296.40 is: 76,991.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,181.33 : 151,865.28 = 51,296.40 : x
  2. Step 2: Convert to fraction form
    101,181.33/151,865.28 = 51,296.40/x
  3. Step 3: Cross multiply
    101,181.33x = 151,865.28 × 51,296.40
  4. Step 4: Simplify right side
    101,181.33x = 7,790,142,148.99
  5. Step 5: Solve for x
    x = 7,790,142,148.99/101,181.33
  6. Step 6: Final answer
    x = 76,991.89

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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.