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Finding the Fourth Proportional to 159,937, 220,732.50 and 92,869

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Solution

The fourth proportional to 159,937, 220,732.50 and 92,869 is: 128,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,937 : 220,732.50 = 92,869 : x
  2. Step 2: Convert to fraction form
    159,937/220,732.50 = 92,869/x
  3. Step 3: Cross multiply
    159,937x = 220,732.50 × 92,869
  4. Step 4: Simplify right side
    159,937x = 20,499,206,542.50
  5. Step 5: Solve for x
    x = 20,499,206,542.50/159,937
  6. Step 6: Final answer
    x = 128,170.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.