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Finding the Third Proportional to 88,171.88 and 128,563.88

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Solution

The third proportional to 88,171.88 and 128,563.88 is: 187,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,171.88 : 128,563.88 = 128,563.88 : x
  2. Step 2: Convert to fraction form
    88,171.88/128,563.88 = 128,563.88/x
  3. Step 3: Cross multiply
    88,171.88x = 128,563.88 × 128,563.88
  4. Step 4: Simplify right side
    88,171.88x = 16,528,669,955.02
  5. Step 5: Solve for x
    x = 16,528,669,955.02/88,171.88
  6. Step 6: Final answer
    x = 187,459.66

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.