Home / 140,735.04-194,191.20-80,305.80

Finding the Fourth Proportional to 140,735.04, 194,191.20 and 80,305.80

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Solution

The fourth proportional to 140,735.04, 194,191.20 and 80,305.80 is: 110,808.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,735.04 : 194,191.20 = 80,305.80 : x
  2. Step 2: Convert to fraction form
    140,735.04/194,191.20 = 80,305.80/x
  3. Step 3: Cross multiply
    140,735.04x = 194,191.20 × 80,305.80
  4. Step 4: Simplify right side
    140,735.04x = 15,594,679,668.96
  5. Step 5: Solve for x
    x = 15,594,679,668.96/140,735.04
  6. Step 6: Final answer
    x = 110,808.79

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1.5x scale

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.