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Finding the Third Proportional to 61,159 and 90,604

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Solution

The third proportional to 61,159 and 90,604 is: 134,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,159 : 90,604 = 90,604 : x
  2. Step 2: Convert to fraction form
    61,159/90,604 = 90,604/x
  3. Step 3: Cross multiply
    61,159x = 90,604 × 90,604
  4. Step 4: Simplify right side
    61,159x = 8,209,084,816
  5. Step 5: Solve for x
    x = 8,209,084,816/61,159
  6. Step 6: Final answer
    x = 134,225.29

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.