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Finding the Third Proportional to 89,431.50 and 125,347.50

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Solution

The third proportional to 89,431.50 and 125,347.50 is: 175,687.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,431.50 : 125,347.50 = 125,347.50 : x
  2. Step 2: Convert to fraction form
    89,431.50/125,347.50 = 125,347.50/x
  3. Step 3: Cross multiply
    89,431.50x = 125,347.50 × 125,347.50
  4. Step 4: Simplify right side
    89,431.50x = 15,711,995,756.25
  5. Step 5: Solve for x
    x = 15,711,995,756.25/89,431.50
  6. Step 6: Final answer
    x = 175,687.49

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.