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Finding the Third Proportional to 87,087 and 130,290

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Solution

The third proportional to 87,087 and 130,290 is: 194,925.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,087 : 130,290 = 130,290 : x
  2. Step 2: Convert to fraction form
    87,087/130,290 = 130,290/x
  3. Step 3: Cross multiply
    87,087x = 130,290 × 130,290
  4. Step 4: Simplify right side
    87,087x = 16,975,484,100
  5. Step 5: Solve for x
    x = 16,975,484,100/87,087
  6. Step 6: Final answer
    x = 194,925.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.