Home / 190,906.32-263,274.66-129,743.76

Finding the Fourth Proportional to 190,906.32, 263,274.66 and 129,743.76

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Solution

The fourth proportional to 190,906.32, 263,274.66 and 129,743.76 is: 178,926.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,906.32 : 263,274.66 = 129,743.76 : x
  2. Step 2: Convert to fraction form
    190,906.32/263,274.66 = 129,743.76/x
  3. Step 3: Cross multiply
    190,906.32x = 263,274.66 × 129,743.76
  4. Step 4: Simplify right side
    190,906.32x = 34,158,244,301.12
  5. Step 5: Solve for x
    x = 34,158,244,301.12/190,906.32
  6. Step 6: Final answer
    x = 178,926.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.