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Finding the Third Proportional to 84,409.50 and 130,660.50

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Solution

The third proportional to 84,409.50 and 130,660.50 is: 202,254.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,409.50 : 130,660.50 = 130,660.50 : x
  2. Step 2: Convert to fraction form
    84,409.50/130,660.50 = 130,660.50/x
  3. Step 3: Cross multiply
    84,409.50x = 130,660.50 × 130,660.50
  4. Step 4: Simplify right side
    84,409.50x = 17,072,166,260.25
  5. Step 5: Solve for x
    x = 17,072,166,260.25/84,409.50
  6. Step 6: Final answer
    x = 202,254.09

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.