Home / 165,905.20-248,857.80-102,775.60

Finding the Fourth Proportional to 165,905.20, 248,857.80 and 102,775.60

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Solution

The fourth proportional to 165,905.20, 248,857.80 and 102,775.60 is: 154,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,905.20 : 248,857.80 = 102,775.60 : x
  2. Step 2: Convert to fraction form
    165,905.20/248,857.80 = 102,775.60/x
  3. Step 3: Cross multiply
    165,905.20x = 248,857.80 × 102,775.60
  4. Step 4: Simplify right side
    165,905.20x = 25,576,509,709.68
  5. Step 5: Solve for x
    x = 25,576,509,709.68/165,905.20
  6. Step 6: Final answer
    x = 154,163.40

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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.