Home / 189,796.02-261,944.56-109,221.90

Finding the Fourth Proportional to 189,796.02, 261,944.56 and 109,221.90

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Solution

The fourth proportional to 189,796.02, 261,944.56 and 109,221.90 is: 150,741.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,796.02 : 261,944.56 = 109,221.90 : x
  2. Step 2: Convert to fraction form
    189,796.02/261,944.56 = 109,221.90/x
  3. Step 3: Cross multiply
    189,796.02x = 261,944.56 × 109,221.90
  4. Step 4: Simplify right side
    189,796.02x = 28,610,082,537.86
  5. Step 5: Solve for x
    x = 28,610,082,537.86/189,796.02
  6. Step 6: Final answer
    x = 150,741.21

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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.