Home / 165,720.20-248,580.30-161,112.20

Finding the Fourth Proportional to 165,720.20, 248,580.30 and 161,112.20

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Solution

The fourth proportional to 165,720.20, 248,580.30 and 161,112.20 is: 241,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,720.20 : 248,580.30 = 161,112.20 : x
  2. Step 2: Convert to fraction form
    165,720.20/248,580.30 = 161,112.20/x
  3. Step 3: Cross multiply
    165,720.20x = 248,580.30 × 161,112.20
  4. Step 4: Simplify right side
    165,720.20x = 40,049,319,009.66
  5. Step 5: Solve for x
    x = 40,049,319,009.66/165,720.20
  6. Step 6: Final answer
    x = 241,668.30

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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.