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Finding the Fourth Proportional to 179,937, 269,721.18 and 74,817

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Solution

The fourth proportional to 179,937, 269,721.18 and 74,817 is: 112,148.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,937 : 269,721.18 = 74,817 : x
  2. Step 2: Convert to fraction form
    179,937/269,721.18 = 74,817/x
  3. Step 3: Cross multiply
    179,937x = 269,721.18 × 74,817
  4. Step 4: Simplify right side
    179,937x = 20,179,729,524.06
  5. Step 5: Solve for x
    x = 20,179,729,524.06/179,937
  6. Step 6: Final answer
    x = 112,148.86

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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.