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Finding the Third Proportional to 89,349.75 and 138,223.13

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Solution

The third proportional to 89,349.75 and 138,223.13 is: 213,829.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,349.75 : 138,223.13 = 138,223.13 : x
  2. Step 2: Convert to fraction form
    89,349.75/138,223.13 = 138,223.13/x
  3. Step 3: Cross multiply
    89,349.75x = 138,223.13 × 138,223.13
  4. Step 4: Simplify right side
    89,349.75x = 19,105,632,284.77
  5. Step 5: Solve for x
    x = 19,105,632,284.77/89,349.75
  6. Step 6: Final answer
    x = 213,829.72

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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.