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Finding the Third Proportional to 70,140 and 98,658

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Solution

The third proportional to 70,140 and 98,658 is: 138,771.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,140 : 98,658 = 98,658 : x
  2. Step 2: Convert to fraction form
    70,140/98,658 = 98,658/x
  3. Step 3: Cross multiply
    70,140x = 98,658 × 98,658
  4. Step 4: Simplify right side
    70,140x = 9,733,400,964
  5. Step 5: Solve for x
    x = 9,733,400,964/70,140
  6. Step 6: Final answer
    x = 138,771.04

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.