Home / 274,786.16-412,159.48-85,241.60

Finding the Fourth Proportional to 274,786.16, 412,159.48 and 85,241.60

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Solution

The fourth proportional to 274,786.16, 412,159.48 and 85,241.60 is: 127,856.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,786.16 : 412,159.48 = 85,241.60 : x
  2. Step 2: Convert to fraction form
    274,786.16/412,159.48 = 85,241.60/x
  3. Step 3: Cross multiply
    274,786.16x = 412,159.48 × 85,241.60
  4. Step 4: Simplify right side
    274,786.16x = 35,133,133,530.37
  5. Step 5: Solve for x
    x = 35,133,133,530.37/274,786.16
  6. Step 6: Final answer
    x = 127,856.27

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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.