Home / 193,036.78-289,591.55-73,129.64

Finding the Fourth Proportional to 193,036.78, 289,591.55 and 73,129.64

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Solution

The fourth proportional to 193,036.78, 289,591.55 and 73,129.64 is: 109,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,036.78 : 289,591.55 = 73,129.64 : x
  2. Step 2: Convert to fraction form
    193,036.78/289,591.55 = 73,129.64/x
  3. Step 3: Cross multiply
    193,036.78x = 289,591.55 × 73,129.64
  4. Step 4: Simplify right side
    193,036.78x = 21,177,726,156.87
  5. Step 5: Solve for x
    x = 21,177,726,156.87/193,036.78
  6. Step 6: Final answer
    x = 109,708.25

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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.