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Finding the Fourth Proportional to 151,732.80, 227,858.40 and 81,748.80

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Solution

The fourth proportional to 151,732.80, 227,858.40 and 81,748.80 is: 122,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,732.80 : 227,858.40 = 81,748.80 : x
  2. Step 2: Convert to fraction form
    151,732.80/227,858.40 = 81,748.80/x
  3. Step 3: Cross multiply
    151,732.80x = 227,858.40 × 81,748.80
  4. Step 4: Simplify right side
    151,732.80x = 18,627,150,769.92
  5. Step 5: Solve for x
    x = 18,627,150,769.92/151,732.80
  6. Step 6: Final answer
    x = 122,762.85

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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.