Home / 189,749.12-261,846.48-109,202.51

Finding the Fourth Proportional to 189,749.12, 261,846.48 and 109,202.51

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Solution

The fourth proportional to 189,749.12, 261,846.48 and 109,202.51 is: 150,695.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,749.12 : 261,846.48 = 109,202.51 : x
  2. Step 2: Convert to fraction form
    189,749.12/261,846.48 = 109,202.51/x
  3. Step 3: Cross multiply
    189,749.12x = 261,846.48 × 109,202.51
  4. Step 4: Simplify right side
    189,749.12x = 28,594,292,850.66
  5. Step 5: Solve for x
    x = 28,594,292,850.66/189,749.12
  6. Step 6: Final answer
    x = 150,695.26

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1.5x scale

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.