Home / 189,540.69-261,624.08-116,965.79

Finding the Fourth Proportional to 189,540.69, 261,624.08 and 116,965.79

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Solution

The fourth proportional to 189,540.69, 261,624.08 and 116,965.79 is: 161,448.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,540.69 : 261,624.08 = 116,965.79 : x
  2. Step 2: Convert to fraction form
    189,540.69/261,624.08 = 116,965.79/x
  3. Step 3: Cross multiply
    189,540.69x = 261,624.08 × 116,965.79
  4. Step 4: Simplify right side
    189,540.69x = 30,601,066,507.68
  5. Step 5: Solve for x
    x = 30,601,066,507.68/189,540.69
  6. Step 6: Final answer
    x = 161,448.53

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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.