Home / 171,790.81-257,786.70-71,942.62

Finding the Fourth Proportional to 171,790.81, 257,786.70 and 71,942.62

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Solution

The fourth proportional to 171,790.81, 257,786.70 and 71,942.62 is: 107,956.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,790.81 : 257,786.70 = 71,942.62 : x
  2. Step 2: Convert to fraction form
    171,790.81/257,786.70 = 71,942.62/x
  3. Step 3: Cross multiply
    171,790.81x = 257,786.70 × 71,942.62
  4. Step 4: Simplify right side
    171,790.81x = 18,545,850,599.15
  5. Step 5: Solve for x
    x = 18,545,850,599.15/171,790.81
  6. Step 6: Final answer
    x = 107,956.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.