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Finding the Third Proportional to 124,945 and 178,071

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Solution

The third proportional to 124,945 and 178,071 is: 253,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,945 : 178,071 = 178,071 : x
  2. Step 2: Convert to fraction form
    124,945/178,071 = 178,071/x
  3. Step 3: Cross multiply
    124,945x = 178,071 × 178,071
  4. Step 4: Simplify right side
    124,945x = 31,709,281,041
  5. Step 5: Solve for x
    x = 31,709,281,041/124,945
  6. Step 6: Final answer
    x = 253,785.91

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.