Home / 189,786.50-261,882.69-104,892.02

Finding the Fourth Proportional to 189,786.50, 261,882.69 and 104,892.02

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Solution

The fourth proportional to 189,786.50, 261,882.69 and 104,892.02 is: 144,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,786.50 : 261,882.69 = 104,892.02 : x
  2. Step 2: Convert to fraction form
    189,786.50/261,882.69 = 104,892.02/x
  3. Step 3: Cross multiply
    189,786.50x = 261,882.69 × 104,892.02
  4. Step 4: Simplify right side
    189,786.50x = 27,469,404,357.13
  5. Step 5: Solve for x
    x = 27,469,404,357.13/189,786.50
  6. Step 6: Final answer
    x = 144,738.45

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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.