Home / 191,145.40-263,786.39-105,099.93

Finding the Fourth Proportional to 191,145.40, 263,786.39 and 105,099.93

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Solution

The fourth proportional to 191,145.40, 263,786.39 and 105,099.93 is: 145,041.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,145.40 : 263,786.39 = 105,099.93 : x
  2. Step 2: Convert to fraction form
    191,145.40/263,786.39 = 105,099.93/x
  3. Step 3: Cross multiply
    191,145.40x = 263,786.39 × 105,099.93
  4. Step 4: Simplify right side
    191,145.40x = 27,723,930,992.58
  5. Step 5: Solve for x
    x = 27,723,930,992.58/191,145.40
  6. Step 6: Final answer
    x = 145,041.06

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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.