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Finding the Fourth Proportional to 140,967.90, 194,524.92 and 80,536.20

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Solution

The fourth proportional to 140,967.90, 194,524.92 and 80,536.20 is: 111,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,967.90 : 194,524.92 = 80,536.20 : x
  2. Step 2: Convert to fraction form
    140,967.90/194,524.92 = 80,536.20/x
  3. Step 3: Cross multiply
    140,967.90x = 194,524.92 × 80,536.20
  4. Step 4: Simplify right side
    140,967.90x = 15,666,297,862.10
  5. Step 5: Solve for x
    x = 15,666,297,862.10/140,967.90
  6. Step 6: Final answer
    x = 111,133.80

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