Home / 140,739.55-194,172.35-80,266.70

Finding the Fourth Proportional to 140,739.55, 194,172.35 and 80,266.70

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Solution

The fourth proportional to 140,739.55, 194,172.35 and 80,266.70 is: 110,740.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,739.55 : 194,172.35 = 80,266.70 : x
  2. Step 2: Convert to fraction form
    140,739.55/194,172.35 = 80,266.70/x
  3. Step 3: Cross multiply
    140,739.55x = 194,172.35 × 80,266.70
  4. Step 4: Simplify right side
    140,739.55x = 15,585,573,849.84
  5. Step 5: Solve for x
    x = 15,585,573,849.84/140,739.55
  6. Step 6: Final answer
    x = 110,740.54

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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.