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Finding the Third Proportional to 98,628.50 and 139,557

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Solution

The third proportional to 98,628.50 and 139,557 is: 197,469.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,628.50 : 139,557 = 139,557 : x
  2. Step 2: Convert to fraction form
    98,628.50/139,557 = 139,557/x
  3. Step 3: Cross multiply
    98,628.50x = 139,557 × 139,557
  4. Step 4: Simplify right side
    98,628.50x = 19,476,156,249
  5. Step 5: Solve for x
    x = 19,476,156,249/98,628.50
  6. Step 6: Final answer
    x = 197,469.86

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.