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Finding the Fourth Proportional to 90,808, 136,212 and 25,144

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Solution

The fourth proportional to 90,808, 136,212 and 25,144 is: 37,716

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,808 : 136,212 = 25,144 : x
  2. Step 2: Convert to fraction form
    90,808/136,212 = 25,144/x
  3. Step 3: Cross multiply
    90,808x = 136,212 × 25,144
  4. Step 4: Simplify right side
    90,808x = 3,424,914,528
  5. Step 5: Solve for x
    x = 3,424,914,528/90,808
  6. Step 6: Final answer
    x = 37,716

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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.