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Finding the Third Proportional to 88,140 and 136,818

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Solution

The third proportional to 88,140 and 136,818 is: 212,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,140 : 136,818 = 136,818 : x
  2. Step 2: Convert to fraction form
    88,140/136,818 = 136,818/x
  3. Step 3: Cross multiply
    88,140x = 136,818 × 136,818
  4. Step 4: Simplify right side
    88,140x = 18,719,165,124
  5. Step 5: Solve for x
    x = 18,719,165,124/88,140
  6. Step 6: Final answer
    x = 212,379.91

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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.