Home / 189,837.62-261,900.57-109,221.76

Finding the Fourth Proportional to 189,837.62, 261,900.57 and 109,221.76

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Solution

The fourth proportional to 189,837.62, 261,900.57 and 109,221.76 is: 150,682.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,837.62 : 261,900.57 = 109,221.76 : x
  2. Step 2: Convert to fraction form
    189,837.62/261,900.57 = 109,221.76/x
  3. Step 3: Cross multiply
    189,837.62x = 261,900.57 × 109,221.76
  4. Step 4: Simplify right side
    189,837.62x = 28,605,241,200.40
  5. Step 5: Solve for x
    x = 28,605,241,200.40/189,837.62
  6. Step 6: Final answer
    x = 150,682.68

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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.