Home / 140,811.54-194,271.36-80,338.56

Finding the Fourth Proportional to 140,811.54, 194,271.36 and 80,338.56

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Solution

The fourth proportional to 140,811.54, 194,271.36 and 80,338.56 is: 110,839.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,811.54 : 194,271.36 = 80,338.56 : x
  2. Step 2: Convert to fraction form
    140,811.54/194,271.36 = 80,338.56/x
  3. Step 3: Cross multiply
    140,811.54x = 194,271.36 × 80,338.56
  4. Step 4: Simplify right side
    140,811.54x = 15,607,481,311.64
  5. Step 5: Solve for x
    x = 15,607,481,311.64/140,811.54
  6. Step 6: Final answer
    x = 110,839.50

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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.