Home / 140,741.55-194,175.10-80,268.70

Finding the Fourth Proportional to 140,741.55, 194,175.10 and 80,268.70

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Solution

The fourth proportional to 140,741.55, 194,175.10 and 80,268.70 is: 110,743.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,741.55 : 194,175.10 = 80,268.70 : x
  2. Step 2: Convert to fraction form
    140,741.55/194,175.10 = 80,268.70/x
  3. Step 3: Cross multiply
    140,741.55x = 194,175.10 × 80,268.70
  4. Step 4: Simplify right side
    140,741.55x = 15,586,182,849.37
  5. Step 5: Solve for x
    x = 15,586,182,849.37/140,741.55
  6. Step 6: Final answer
    x = 110,743.29

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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.