Home / 129,353.40-193,796.60-54,339.30

Finding the Fourth Proportional to 129,353.40, 193,796.60 and 54,339.30

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Solution

The fourth proportional to 129,353.40, 193,796.60 and 54,339.30 is: 81,410.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,353.40 : 193,796.60 = 54,339.30 : x
  2. Step 2: Convert to fraction form
    129,353.40/193,796.60 = 54,339.30/x
  3. Step 3: Cross multiply
    129,353.40x = 193,796.60 × 54,339.30
  4. Step 4: Simplify right side
    129,353.40x = 10,530,771,586.38
  5. Step 5: Solve for x
    x = 10,530,771,586.38/129,353.40
  6. Step 6: Final answer
    x = 81,410.86

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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.