Home / 189,431.46-261,325.24-112,906.51

Finding the Fourth Proportional to 189,431.46, 261,325.24 and 112,906.51

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Solution

The fourth proportional to 189,431.46, 261,325.24 and 112,906.51 is: 155,757.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,431.46 : 261,325.24 = 112,906.51 : x
  2. Step 2: Convert to fraction form
    189,431.46/261,325.24 = 112,906.51/x
  3. Step 3: Cross multiply
    189,431.46x = 261,325.24 × 112,906.51
  4. Step 4: Simplify right side
    189,431.46x = 29,505,319,887.73
  5. Step 5: Solve for x
    x = 29,505,319,887.73/189,431.46
  6. Step 6: Final answer
    x = 155,757.23

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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.