Home / 189,631.76-261,699.44-109,059.26

Finding the Fourth Proportional to 189,631.76, 261,699.44 and 109,059.26

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Solution

The fourth proportional to 189,631.76, 261,699.44 and 109,059.26 is: 150,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,631.76 : 261,699.44 = 109,059.26 : x
  2. Step 2: Convert to fraction form
    189,631.76/261,699.44 = 109,059.26/x
  3. Step 3: Cross multiply
    189,631.76x = 261,699.44 × 109,059.26
  4. Step 4: Simplify right side
    189,631.76x = 28,540,745,415.02
  5. Step 5: Solve for x
    x = 28,540,745,415.02/189,631.76
  6. Step 6: Final answer
    x = 150,506.15

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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.