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Finding the Fourth Proportional to 140,997.65, 194,587.02 and 80,566.92

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Solution

The fourth proportional to 140,997.65, 194,587.02 and 80,566.92 is: 111,188.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,997.65 : 194,587.02 = 80,566.92 : x
  2. Step 2: Convert to fraction form
    140,997.65/194,587.02 = 80,566.92/x
  3. Step 3: Cross multiply
    140,997.65x = 194,587.02 × 80,566.92
  4. Step 4: Simplify right side
    140,997.65x = 15,677,276,873.38
  5. Step 5: Solve for x
    x = 15,677,276,873.38/140,997.65
  6. Step 6: Final answer
    x = 111,188.22

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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.