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Finding the Third Proportional to 67,587.75 and 139,276.13

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Solution

The third proportional to 67,587.75 and 139,276.13 is: 287,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,587.75 : 139,276.13 = 139,276.13 : x
  2. Step 2: Convert to fraction form
    67,587.75/139,276.13 = 139,276.13/x
  3. Step 3: Cross multiply
    67,587.75x = 139,276.13 × 139,276.13
  4. Step 4: Simplify right side
    67,587.75x = 19,397,838,995.02
  5. Step 5: Solve for x
    x = 19,397,838,995.02/67,587.75
  6. Step 6: Final answer
    x = 287,002.29

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.