Home / 165,743.31-248,615.43-53,431.75

Finding the Fourth Proportional to 165,743.31, 248,615.43 and 53,431.75

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Solution

The fourth proportional to 165,743.31, 248,615.43 and 53,431.75 is: 80,147.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,743.31 : 248,615.43 = 53,431.75 : x
  2. Step 2: Convert to fraction form
    165,743.31/248,615.43 = 53,431.75/x
  3. Step 3: Cross multiply
    165,743.31x = 248,615.43 × 53,431.75
  4. Step 4: Simplify right side
    165,743.31x = 13,283,957,612.30
  5. Step 5: Solve for x
    x = 13,283,957,612.30/165,743.31
  6. Step 6: Final answer
    x = 80,147.77

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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.