Home / 129,114.45-193,682.83-35,620.20

Finding the Fourth Proportional to 129,114.45, 193,682.83 and 35,620.20

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Solution

The fourth proportional to 129,114.45, 193,682.83 and 35,620.20 is: 53,433.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,114.45 : 193,682.83 = 35,620.20 : x
  2. Step 2: Convert to fraction form
    129,114.45/193,682.83 = 35,620.20/x
  3. Step 3: Cross multiply
    129,114.45x = 193,682.83 × 35,620.20
  4. Step 4: Simplify right side
    129,114.45x = 6,899,021,185.69
  5. Step 5: Solve for x
    x = 6,899,021,185.69/129,114.45
  6. Step 6: Final answer
    x = 53,433.38

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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.