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Finding the Third Proportional to 83,985 and 130,230

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Solution

The third proportional to 83,985 and 130,230 is: 201,939.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,985 : 130,230 = 130,230 : x
  2. Step 2: Convert to fraction form
    83,985/130,230 = 130,230/x
  3. Step 3: Cross multiply
    83,985x = 130,230 × 130,230
  4. Step 4: Simplify right side
    83,985x = 16,959,852,900
  5. Step 5: Solve for x
    x = 16,959,852,900/83,985
  6. Step 6: Final answer
    x = 201,939.07

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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.