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Finding the Third Proportional to 64,838 and 100,130

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Solution

The third proportional to 64,838 and 100,130 is: 154,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,838 : 100,130 = 100,130 : x
  2. Step 2: Convert to fraction form
    64,838/100,130 = 100,130/x
  3. Step 3: Cross multiply
    64,838x = 100,130 × 100,130
  4. Step 4: Simplify right side
    64,838x = 10,026,016,900
  5. Step 5: Solve for x
    x = 10,026,016,900/64,838
  6. Step 6: Final answer
    x = 154,631.80

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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.