Home / 213,161.45-294,163-117,668.06

Finding the Fourth Proportional to 213,161.45, 294,163 and 117,668.06

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Solution

The fourth proportional to 213,161.45, 294,163 and 117,668.06 is: 162,382.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,161.45 : 294,163 = 117,668.06 : x
  2. Step 2: Convert to fraction form
    213,161.45/294,163 = 117,668.06/x
  3. Step 3: Cross multiply
    213,161.45x = 294,163 × 117,668.06
  4. Step 4: Simplify right side
    213,161.45x = 34,613,589,533.78
  5. Step 5: Solve for x
    x = 34,613,589,533.78/213,161.45
  6. Step 6: Final answer
    x = 162,382.03

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1.5x scale

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.