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Finding the Third Proportional to 100,154 and 155,973

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Solution

The third proportional to 100,154 and 155,973 is: 242,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,154 : 155,973 = 155,973 : x
  2. Step 2: Convert to fraction form
    100,154/155,973 = 155,973/x
  3. Step 3: Cross multiply
    100,154x = 155,973 × 155,973
  4. Step 4: Simplify right side
    100,154x = 24,327,576,729
  5. Step 5: Solve for x
    x = 24,327,576,729/100,154
  6. Step 6: Final answer
    x = 242,901.70

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.