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Finding the Third Proportional to 89,235 and 130,872

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Solution

The third proportional to 89,235 and 130,872 is: 191,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,235 : 130,872 = 130,872 : x
  2. Step 2: Convert to fraction form
    89,235/130,872 = 130,872/x
  3. Step 3: Cross multiply
    89,235x = 130,872 × 130,872
  4. Step 4: Simplify right side
    89,235x = 17,127,480,384
  5. Step 5: Solve for x
    x = 17,127,480,384/89,235
  6. Step 6: Final answer
    x = 191,936.80

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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.