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Finding the Fourth Proportional to 99,910, 149,865 and 26,038

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Solution

The fourth proportional to 99,910, 149,865 and 26,038 is: 39,057

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,910 : 149,865 = 26,038 : x
  2. Step 2: Convert to fraction form
    99,910/149,865 = 26,038/x
  3. Step 3: Cross multiply
    99,910x = 149,865 × 26,038
  4. Step 4: Simplify right side
    99,910x = 3,902,184,870
  5. Step 5: Solve for x
    x = 3,902,184,870/99,910
  6. Step 6: Final answer
    x = 39,057

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.