Home / 140,690.30-194,171.09-80,247.06

Finding the Fourth Proportional to 140,690.30, 194,171.09 and 80,247.06

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Solution

The fourth proportional to 140,690.30, 194,171.09 and 80,247.06 is: 110,751.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,690.30 : 194,171.09 = 80,247.06 : x
  2. Step 2: Convert to fraction form
    140,690.30/194,171.09 = 80,247.06/x
  3. Step 3: Cross multiply
    140,690.30x = 194,171.09 × 80,247.06
  4. Step 4: Simplify right side
    140,690.30x = 15,581,658,708.26
  5. Step 5: Solve for x
    x = 15,581,658,708.26/140,690.30
  6. Step 6: Final answer
    x = 110,751.48

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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.