Home / 171,120.18-256,466.43-82,349.85

Finding the Fourth Proportional to 171,120.18, 256,466.43 and 82,349.85

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Solution

The fourth proportional to 171,120.18, 256,466.43 and 82,349.85 is: 123,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,120.18 : 256,466.43 = 82,349.85 : x
  2. Step 2: Convert to fraction form
    171,120.18/256,466.43 = 82,349.85/x
  3. Step 3: Cross multiply
    171,120.18x = 256,466.43 × 82,349.85
  4. Step 4: Simplify right side
    171,120.18x = 21,119,972,040.54
  5. Step 5: Solve for x
    x = 21,119,972,040.54/171,120.18
  6. Step 6: Final answer
    x = 123,421.87

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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.