Home / 191,138.44-263,772.84-105,101.88

Finding the Fourth Proportional to 191,138.44, 263,772.84 and 105,101.88

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Solution

The fourth proportional to 191,138.44, 263,772.84 and 105,101.88 is: 145,041.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,138.44 : 263,772.84 = 105,101.88 : x
  2. Step 2: Convert to fraction form
    191,138.44/263,772.84 = 105,101.88/x
  3. Step 3: Cross multiply
    191,138.44x = 263,772.84 × 105,101.88
  4. Step 4: Simplify right side
    191,138.44x = 27,723,021,376.94
  5. Step 5: Solve for x
    x = 27,723,021,376.94/191,138.44
  6. Step 6: Final answer
    x = 145,041.58

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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.