Home / 189,414.09-261,276.17-112,882.86

Finding the Fourth Proportional to 189,414.09, 261,276.17 and 112,882.86

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Solution

The fourth proportional to 189,414.09, 261,276.17 and 112,882.86 is: 155,709.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,414.09 : 261,276.17 = 112,882.86 : x
  2. Step 2: Convert to fraction form
    189,414.09/261,276.17 = 112,882.86/x
  3. Step 3: Cross multiply
    189,414.09x = 261,276.17 × 112,882.86
  4. Step 4: Simplify right side
    189,414.09x = 29,493,600,755.03
  5. Step 5: Solve for x
    x = 29,493,600,755.03/189,414.09
  6. Step 6: Final answer
    x = 155,709.65

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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.