Home / 189,540.27-261,558.72-104,655.51

Finding the Fourth Proportional to 189,540.27, 261,558.72 and 104,655.51

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Solution

The fourth proportional to 189,540.27, 261,558.72 and 104,655.51 is: 144,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,540.27 : 261,558.72 = 104,655.51 : x
  2. Step 2: Convert to fraction form
    189,540.27/261,558.72 = 104,655.51/x
  3. Step 3: Cross multiply
    189,540.27x = 261,558.72 × 104,655.51
  4. Step 4: Simplify right side
    189,540.27x = 27,373,561,236.55
  5. Step 5: Solve for x
    x = 27,373,561,236.55/189,540.27
  6. Step 6: Final answer
    x = 144,420.82

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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.