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Finding the Fourth Proportional to 127,960.70, 191,941.03 and 68,714.87

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Solution

The fourth proportional to 127,960.70, 191,941.03 and 68,714.87 is: 103,072.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,960.70 : 191,941.03 = 68,714.87 : x
  2. Step 2: Convert to fraction form
    127,960.70/191,941.03 = 68,714.87/x
  3. Step 3: Cross multiply
    127,960.70x = 191,941.03 × 68,714.87
  4. Step 4: Simplify right side
    127,960.70x = 13,189,202,580.54
  5. Step 5: Solve for x
    x = 13,189,202,580.54/127,960.70
  6. Step 6: Final answer
    x = 103,072.29

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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.