Home / 189,668.06-261,769.36-113,190.38

Finding the Fourth Proportional to 189,668.06, 261,769.36 and 113,190.38

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Solution

The fourth proportional to 189,668.06, 261,769.36 and 113,190.38 is: 156,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,668.06 : 261,769.36 = 113,190.38 : x
  2. Step 2: Convert to fraction form
    189,668.06/261,769.36 = 113,190.38/x
  3. Step 3: Cross multiply
    189,668.06x = 261,769.36 × 113,190.38
  4. Step 4: Simplify right side
    189,668.06x = 29,629,773,330.76
  5. Step 5: Solve for x
    x = 29,629,773,330.76/189,668.06
  6. Step 6: Final answer
    x = 156,219.10

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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.