Home / 129,888.72-194,789.34-104,869.44

Finding the Fourth Proportional to 129,888.72, 194,789.34 and 104,869.44

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Solution

The fourth proportional to 129,888.72, 194,789.34 and 104,869.44 is: 157,268.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,888.72 : 194,789.34 = 104,869.44 : x
  2. Step 2: Convert to fraction form
    129,888.72/194,789.34 = 104,869.44/x
  3. Step 3: Cross multiply
    129,888.72x = 194,789.34 × 104,869.44
  4. Step 4: Simplify right side
    129,888.72x = 20,427,449,003.77
  5. Step 5: Solve for x
    x = 20,427,449,003.77/129,888.72
  6. Step 6: Final answer
    x = 157,268.85

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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.