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Finding the Third Proportional to 64,958 and 98,139

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Solution

The third proportional to 64,958 and 98,139 is: 148,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,958 : 98,139 = 98,139 : x
  2. Step 2: Convert to fraction form
    64,958/98,139 = 98,139/x
  3. Step 3: Cross multiply
    64,958x = 98,139 × 98,139
  4. Step 4: Simplify right side
    64,958x = 9,631,263,321
  5. Step 5: Solve for x
    x = 9,631,263,321/64,958
  6. Step 6: Final answer
    x = 148,269.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.