Home / 192,997.30-266,336.22-105,781.90

Finding the Fourth Proportional to 192,997.30, 266,336.22 and 105,781.90

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Solution

The fourth proportional to 192,997.30, 266,336.22 and 105,781.90 is: 145,978.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,997.30 : 266,336.22 = 105,781.90 : x
  2. Step 2: Convert to fraction form
    192,997.30/266,336.22 = 105,781.90/x
  3. Step 3: Cross multiply
    192,997.30x = 266,336.22 × 105,781.90
  4. Step 4: Simplify right side
    192,997.30x = 28,173,551,390.42
  5. Step 5: Solve for x
    x = 28,173,551,390.42/192,997.30
  6. Step 6: Final answer
    x = 145,978.99

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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.