Home / 171,396.45-257,151.96-82,639.47

Finding the Fourth Proportional to 171,396.45, 257,151.96 and 82,639.47

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Solution

The fourth proportional to 171,396.45, 257,151.96 and 82,639.47 is: 123,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,396.45 : 257,151.96 = 82,639.47 : x
  2. Step 2: Convert to fraction form
    171,396.45/257,151.96 = 82,639.47/x
  3. Step 3: Cross multiply
    171,396.45x = 257,151.96 × 82,639.47
  4. Step 4: Simplify right side
    171,396.45x = 21,250,901,683.86
  5. Step 5: Solve for x
    x = 21,250,901,683.86/171,396.45
  6. Step 6: Final answer
    x = 123,986.83

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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.