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Finding the Fourth Proportional to 127,606.50, 191,425.38 and 43,380.54

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Solution

The fourth proportional to 127,606.50, 191,425.38 and 43,380.54 is: 65,076.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,606.50 : 191,425.38 = 43,380.54 : x
  2. Step 2: Convert to fraction form
    127,606.50/191,425.38 = 43,380.54/x
  3. Step 3: Cross multiply
    127,606.50x = 191,425.38 × 43,380.54
  4. Step 4: Simplify right side
    127,606.50x = 8,304,136,354.11
  5. Step 5: Solve for x
    x = 8,304,136,354.11/127,606.50
  6. Step 6: Final answer
    x = 65,076.12

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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.