Home / 210,825.26-290,945.75-120,179.57

Finding the Fourth Proportional to 210,825.26, 290,945.75 and 120,179.57

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Solution

The fourth proportional to 210,825.26, 290,945.75 and 120,179.57 is: 165,851.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,825.26 : 290,945.75 = 120,179.57 : x
  2. Step 2: Convert to fraction form
    210,825.26/290,945.75 = 120,179.57/x
  3. Step 3: Cross multiply
    210,825.26x = 290,945.75 × 120,179.57
  4. Step 4: Simplify right side
    210,825.26x = 34,965,735,128.33
  5. Step 5: Solve for x
    x = 34,965,735,128.33/210,825.26
  6. Step 6: Final answer
    x = 165,851.73

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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.