Home / 129,305.08-193,964.91-39,350.72

Finding the Fourth Proportional to 129,305.08, 193,964.91 and 39,350.72

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Solution

The fourth proportional to 129,305.08, 193,964.91 and 39,350.72 is: 59,028.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,305.08 : 193,964.91 = 39,350.72 : x
  2. Step 2: Convert to fraction form
    129,305.08/193,964.91 = 39,350.72/x
  3. Step 3: Cross multiply
    129,305.08x = 193,964.91 × 39,350.72
  4. Step 4: Simplify right side
    129,305.08x = 7,632,659,348.15
  5. Step 5: Solve for x
    x = 7,632,659,348.15/129,305.08
  6. Step 6: Final answer
    x = 59,028.30

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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.