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Finding the Third Proportional to 71,480.25 and 105,140.25

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Solution

The third proportional to 71,480.25 and 105,140.25 is: 154,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,480.25 : 105,140.25 = 105,140.25 : x
  2. Step 2: Convert to fraction form
    71,480.25/105,140.25 = 105,140.25/x
  3. Step 3: Cross multiply
    71,480.25x = 105,140.25 × 105,140.25
  4. Step 4: Simplify right side
    71,480.25x = 11,054,472,170.06
  5. Step 5: Solve for x
    x = 11,054,472,170.06/71,480.25
  6. Step 6: Final answer
    x = 154,650.72

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.