Home / 189,255.22-261,172.08-104,372.32

Finding the Fourth Proportional to 189,255.22, 261,172.08 and 104,372.32

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Solution

The fourth proportional to 189,255.22, 261,172.08 and 104,372.32 is: 144,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,255.22 : 261,172.08 = 104,372.32 : x
  2. Step 2: Convert to fraction form
    189,255.22/261,172.08 = 104,372.32/x
  3. Step 3: Cross multiply
    189,255.22x = 261,172.08 × 104,372.32
  4. Step 4: Simplify right side
    189,255.22x = 27,259,135,908.83
  5. Step 5: Solve for x
    x = 27,259,135,908.83/189,255.22
  6. Step 6: Final answer
    x = 144,033.73

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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.