Home / 129,775.24-194,410.38-85,266.76

Finding the Fourth Proportional to 129,775.24, 194,410.38 and 85,266.76

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Solution

The fourth proportional to 129,775.24, 194,410.38 and 85,266.76 is: 127,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,775.24 : 194,410.38 = 85,266.76 : x
  2. Step 2: Convert to fraction form
    129,775.24/194,410.38 = 85,266.76/x
  3. Step 3: Cross multiply
    129,775.24x = 194,410.38 × 85,266.76
  4. Step 4: Simplify right side
    129,775.24x = 16,576,743,212.97
  5. Step 5: Solve for x
    x = 16,576,743,212.97/129,775.24
  6. Step 6: Final answer
    x = 127,734.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.