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Finding the Third Proportional to 64,854 and 139,707

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Solution

The third proportional to 64,854 and 139,707 is: 300,953.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,854 : 139,707 = 139,707 : x
  2. Step 2: Convert to fraction form
    64,854/139,707 = 139,707/x
  3. Step 3: Cross multiply
    64,854x = 139,707 × 139,707
  4. Step 4: Simplify right side
    64,854x = 19,518,045,849
  5. Step 5: Solve for x
    x = 19,518,045,849/64,854
  6. Step 6: Final answer
    x = 300,953.62

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.