Home / 193,157.28-289,502.64-82,116

Finding the Fourth Proportional to 193,157.28, 289,502.64 and 82,116

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Solution

The fourth proportional to 193,157.28, 289,502.64 and 82,116 is: 123,074.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,157.28 : 289,502.64 = 82,116 : x
  2. Step 2: Convert to fraction form
    193,157.28/289,502.64 = 82,116/x
  3. Step 3: Cross multiply
    193,157.28x = 289,502.64 × 82,116
  4. Step 4: Simplify right side
    193,157.28x = 23,772,798,786.24
  5. Step 5: Solve for x
    x = 23,772,798,786.24/193,157.28
  6. Step 6: Final answer
    x = 123,074.83

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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.