Home / 203,181.06-280,329.21-131,447.46

Finding the Fourth Proportional to 203,181.06, 280,329.21 and 131,447.46

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Solution

The fourth proportional to 203,181.06, 280,329.21 and 131,447.46 is: 181,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,181.06 : 280,329.21 = 131,447.46 : x
  2. Step 2: Convert to fraction form
    203,181.06/280,329.21 = 131,447.46/x
  3. Step 3: Cross multiply
    203,181.06x = 280,329.21 × 131,447.46
  4. Step 4: Simplify right side
    203,181.06x = 36,848,562,618.31
  5. Step 5: Solve for x
    x = 36,848,562,618.31/203,181.06
  6. Step 6: Final answer
    x = 181,358.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.