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Finding the Fourth Proportional to 181,079.20, 271,618.80 and 131,927.20

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Solution

The fourth proportional to 181,079.20, 271,618.80 and 131,927.20 is: 197,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,079.20 : 271,618.80 = 131,927.20 : x
  2. Step 2: Convert to fraction form
    181,079.20/271,618.80 = 131,927.20/x
  3. Step 3: Cross multiply
    181,079.20x = 271,618.80 × 131,927.20
  4. Step 4: Simplify right side
    181,079.20x = 35,833,907,751.36
  5. Step 5: Solve for x
    x = 35,833,907,751.36/181,079.20
  6. Step 6: Final answer
    x = 197,890.80

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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.