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Finding the Fourth Proportional to 127,296.70, 190,945.05 and 97,863.10

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Solution

The fourth proportional to 127,296.70, 190,945.05 and 97,863.10 is: 146,794.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,296.70 : 190,945.05 = 97,863.10 : x
  2. Step 2: Convert to fraction form
    127,296.70/190,945.05 = 97,863.10/x
  3. Step 3: Cross multiply
    127,296.70x = 190,945.05 × 97,863.10
  4. Step 4: Simplify right side
    127,296.70x = 18,686,474,522.66
  5. Step 5: Solve for x
    x = 18,686,474,522.66/127,296.70
  6. Step 6: Final answer
    x = 146,794.65

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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.