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Finding the Fourth Proportional to 119,687.88, 165,178.80 and 65,982.44

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Solution

The fourth proportional to 119,687.88, 165,178.80 and 65,982.44 is: 91,061.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,687.88 : 165,178.80 = 65,982.44 : x
  2. Step 2: Convert to fraction form
    119,687.88/165,178.80 = 65,982.44/x
  3. Step 3: Cross multiply
    119,687.88x = 165,178.80 × 65,982.44
  4. Step 4: Simplify right side
    119,687.88x = 10,898,900,260.27
  5. Step 5: Solve for x
    x = 10,898,900,260.27/119,687.88
  6. Step 6: Final answer
    x = 91,061.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.