Home / 171,086.23-256,407.40-76,181.37

Finding the Fourth Proportional to 171,086.23, 256,407.40 and 76,181.37

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Solution

The fourth proportional to 171,086.23, 256,407.40 and 76,181.37 is: 114,173.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,086.23 : 256,407.40 = 76,181.37 : x
  2. Step 2: Convert to fraction form
    171,086.23/256,407.40 = 76,181.37/x
  3. Step 3: Cross multiply
    171,086.23x = 256,407.40 × 76,181.37
  4. Step 4: Simplify right side
    171,086.23x = 19,533,467,010.14
  5. Step 5: Solve for x
    x = 19,533,467,010.14/171,086.23
  6. Step 6: Final answer
    x = 114,173.23

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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.