Home / 189,268.38-261,190.44-104,390.91

Finding the Fourth Proportional to 189,268.38, 261,190.44 and 104,390.91

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Solution

The fourth proportional to 189,268.38, 261,190.44 and 104,390.91 is: 144,059.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,268.38 : 261,190.44 = 104,390.91 : x
  2. Step 2: Convert to fraction form
    189,268.38/261,190.44 = 104,390.91/x
  3. Step 3: Cross multiply
    189,268.38x = 261,190.44 × 104,390.91
  4. Step 4: Simplify right side
    189,268.38x = 27,265,907,714.90
  5. Step 5: Solve for x
    x = 27,265,907,714.90/189,268.38
  6. Step 6: Final answer
    x = 144,059.50

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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.