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Finding the Third Proportional to 69,639 and 106,090.50

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Solution

The third proportional to 69,639 and 106,090.50 is: 161,622.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,639 : 106,090.50 = 106,090.50 : x
  2. Step 2: Convert to fraction form
    69,639/106,090.50 = 106,090.50/x
  3. Step 3: Cross multiply
    69,639x = 106,090.50 × 106,090.50
  4. Step 4: Simplify right side
    69,639x = 11,255,194,190.25
  5. Step 5: Solve for x
    x = 11,255,194,190.25/69,639
  6. Step 6: Final answer
    x = 161,622.00

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.