Home / 140,629.30-194,063.58-80,219.50

Finding the Fourth Proportional to 140,629.30, 194,063.58 and 80,219.50

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Solution

The fourth proportional to 140,629.30, 194,063.58 and 80,219.50 is: 110,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,629.30 : 194,063.58 = 80,219.50 : x
  2. Step 2: Convert to fraction form
    140,629.30/194,063.58 = 80,219.50/x
  3. Step 3: Cross multiply
    140,629.30x = 194,063.58 × 80,219.50
  4. Step 4: Simplify right side
    140,629.30x = 15,567,682,870.65
  5. Step 5: Solve for x
    x = 15,567,682,870.65/140,629.30
  6. Step 6: Final answer
    x = 110,700.14

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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.