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Finding the Third Proportional to 130,020.50 and 194,172.75

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Solution

The third proportional to 130,020.50 and 194,172.75 is: 289,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,020.50 : 194,172.75 = 194,172.75 : x
  2. Step 2: Convert to fraction form
    130,020.50/194,172.75 = 194,172.75/x
  3. Step 3: Cross multiply
    130,020.50x = 194,172.75 × 194,172.75
  4. Step 4: Simplify right side
    130,020.50x = 37,703,056,842.56
  5. Step 5: Solve for x
    x = 37,703,056,842.56/130,020.50
  6. Step 6: Final answer
    x = 289,977.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.