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Finding the Third Proportional to 89,397 and 130,378.50

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Solution

The third proportional to 89,397 and 130,378.50 is: 190,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,397 : 130,378.50 = 130,378.50 : x
  2. Step 2: Convert to fraction form
    89,397/130,378.50 = 130,378.50/x
  3. Step 3: Cross multiply
    89,397x = 130,378.50 × 130,378.50
  4. Step 4: Simplify right side
    89,397x = 16,998,553,262.25
  5. Step 5: Solve for x
    x = 16,998,553,262.25/89,397
  6. Step 6: Final answer
    x = 190,146.80

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.