Home / 177,031.78-265,403.42-82,321.75

Finding the Fourth Proportional to 177,031.78, 265,403.42 and 82,321.75

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Solution

The fourth proportional to 177,031.78, 265,403.42 and 82,321.75 is: 123,415.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,031.78 : 265,403.42 = 82,321.75 : x
  2. Step 2: Convert to fraction form
    177,031.78/265,403.42 = 82,321.75/x
  3. Step 3: Cross multiply
    177,031.78x = 265,403.42 × 82,321.75
  4. Step 4: Simplify right side
    177,031.78x = 21,848,474,219.24
  5. Step 5: Solve for x
    x = 21,848,474,219.24/177,031.78
  6. Step 6: Final answer
    x = 123,415.55

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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.