Home / 143,937.42-198,634.71-80,279.34

Finding the Fourth Proportional to 143,937.42, 198,634.71 and 80,279.34

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Solution

The fourth proportional to 143,937.42, 198,634.71 and 80,279.34 is: 110,786.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,937.42 : 198,634.71 = 80,279.34 : x
  2. Step 2: Convert to fraction form
    143,937.42/198,634.71 = 80,279.34/x
  3. Step 3: Cross multiply
    143,937.42x = 198,634.71 × 80,279.34
  4. Step 4: Simplify right side
    143,937.42x = 15,946,263,419.89
  5. Step 5: Solve for x
    x = 15,946,263,419.89/143,937.42
  6. Step 6: Final answer
    x = 110,786.09

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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.