Home / 189,236.34-261,134.22-108,607.11

Finding the Fourth Proportional to 189,236.34, 261,134.22 and 108,607.11

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Solution

The fourth proportional to 189,236.34, 261,134.22 and 108,607.11 is: 149,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,236.34 : 261,134.22 = 108,607.11 : x
  2. Step 2: Convert to fraction form
    189,236.34/261,134.22 = 108,607.11/x
  3. Step 3: Cross multiply
    189,236.34x = 261,134.22 × 108,607.11
  4. Step 4: Simplify right side
    189,236.34x = 28,361,032,956.30
  5. Step 5: Solve for x
    x = 28,361,032,956.30/189,236.34
  6. Step 6: Final answer
    x = 149,870.97

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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.