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Finding the Fourth Proportional to 127,287, 190,882.48 and 102,265.56

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Solution

The fourth proportional to 127,287, 190,882.48 and 102,265.56 is: 153,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,287 : 190,882.48 = 102,265.56 : x
  2. Step 2: Convert to fraction form
    127,287/190,882.48 = 102,265.56/x
  3. Step 3: Cross multiply
    127,287x = 190,882.48 × 102,265.56
  4. Step 4: Simplify right side
    127,287x = 19,520,703,711.39
  5. Step 5: Solve for x
    x = 19,520,703,711.39/127,287
  6. Step 6: Final answer
    x = 153,359.76

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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.