Home / 191,131.92-263,756.45-105,091.02

Finding the Fourth Proportional to 191,131.92, 263,756.45 and 105,091.02

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Solution

The fourth proportional to 191,131.92, 263,756.45 and 105,091.02 is: 145,022.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,131.92 : 263,756.45 = 105,091.02 : x
  2. Step 2: Convert to fraction form
    191,131.92/263,756.45 = 105,091.02/x
  3. Step 3: Cross multiply
    191,131.92x = 263,756.45 × 105,091.02
  4. Step 4: Simplify right side
    191,131.92x = 27,718,434,624.81
  5. Step 5: Solve for x
    x = 27,718,434,624.81/191,131.92
  6. Step 6: Final answer
    x = 145,022.53

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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.