Home / 171,415.89-257,289.68-82,731.83

Finding the Fourth Proportional to 171,415.89, 257,289.68 and 82,731.83

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Solution

The fourth proportional to 171,415.89, 257,289.68 and 82,731.83 is: 124,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,415.89 : 257,289.68 = 82,731.83 : x
  2. Step 2: Convert to fraction form
    171,415.89/257,289.68 = 82,731.83/x
  3. Step 3: Cross multiply
    171,415.89x = 257,289.68 × 82,731.83
  4. Step 4: Simplify right side
    171,415.89x = 21,286,044,986.90
  5. Step 5: Solve for x
    x = 21,286,044,986.90/171,415.89
  6. Step 6: Final answer
    x = 124,177.78

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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.