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Finding the Third Proportional to 99,472.50 and 139,812.75

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Solution

The third proportional to 99,472.50 and 139,812.75 is: 196,512.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,472.50 : 139,812.75 = 139,812.75 : x
  2. Step 2: Convert to fraction form
    99,472.50/139,812.75 = 139,812.75/x
  3. Step 3: Cross multiply
    99,472.50x = 139,812.75 × 139,812.75
  4. Step 4: Simplify right side
    99,472.50x = 19,547,605,062.56
  5. Step 5: Solve for x
    x = 19,547,605,062.56/99,472.50
  6. Step 6: Final answer
    x = 196,512.65

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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.