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Finding the Third Proportional to 92,390.25 and 128,722.88

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Solution

The third proportional to 92,390.25 and 128,722.88 is: 179,343.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,390.25 : 128,722.88 = 128,722.88 : x
  2. Step 2: Convert to fraction form
    92,390.25/128,722.88 = 128,722.88/x
  3. Step 3: Cross multiply
    92,390.25x = 128,722.88 × 128,722.88
  4. Step 4: Simplify right side
    92,390.25x = 16,569,578,548.27
  5. Step 5: Solve for x
    x = 16,569,578,548.27/92,390.25
  6. Step 6: Final answer
    x = 179,343.37

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.