Home / 189,327.47-261,252.74-111,791.03

Finding the Fourth Proportional to 189,327.47, 261,252.74 and 111,791.03

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Solution

The fourth proportional to 189,327.47, 261,252.74 and 111,791.03 is: 154,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,327.47 : 261,252.74 = 111,791.03 : x
  2. Step 2: Convert to fraction form
    189,327.47/261,252.74 = 111,791.03/x
  3. Step 3: Cross multiply
    189,327.47x = 261,252.74 × 111,791.03
  4. Step 4: Simplify right side
    189,327.47x = 29,205,711,868.14
  5. Step 5: Solve for x
    x = 29,205,711,868.14/189,327.47
  6. Step 6: Final answer
    x = 154,260.30

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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.