Home / 194,785.32-268,820.15-109,918.79

Finding the Fourth Proportional to 194,785.32, 268,820.15 and 109,918.79

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Solution

The fourth proportional to 194,785.32, 268,820.15 and 109,918.79 is: 151,697.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,785.32 : 268,820.15 = 109,918.79 : x
  2. Step 2: Convert to fraction form
    194,785.32/268,820.15 = 109,918.79/x
  3. Step 3: Cross multiply
    194,785.32x = 268,820.15 × 109,918.79
  4. Step 4: Simplify right side
    194,785.32x = 29,548,383,721.92
  5. Step 5: Solve for x
    x = 29,548,383,721.92/194,785.32
  6. Step 6: Final answer
    x = 151,697.18

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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.