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Finding the Third Proportional to 88,620 and 136,215.75

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Solution

The third proportional to 88,620 and 136,215.75 is: 209,374.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,620 : 136,215.75 = 136,215.75 : x
  2. Step 2: Convert to fraction form
    88,620/136,215.75 = 136,215.75/x
  3. Step 3: Cross multiply
    88,620x = 136,215.75 × 136,215.75
  4. Step 4: Simplify right side
    88,620x = 18,554,730,548.06
  5. Step 5: Solve for x
    x = 18,554,730,548.06/88,620
  6. Step 6: Final answer
    x = 209,374.08

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.