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Finding the Third Proportional to 99,699.19 and 153,243.56

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Solution

The third proportional to 99,699.19 and 153,243.56 is: 235,544.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,699.19 : 153,243.56 = 153,243.56 : x
  2. Step 2: Convert to fraction form
    99,699.19/153,243.56 = 153,243.56/x
  3. Step 3: Cross multiply
    99,699.19x = 153,243.56 × 153,243.56
  4. Step 4: Simplify right side
    99,699.19x = 23,483,589,447.69
  5. Step 5: Solve for x
    x = 23,483,589,447.69/99,699.19
  6. Step 6: Final answer
    x = 235,544.44

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.