Home / 203,020.68-280,104.13-118,121.34

Finding the Fourth Proportional to 203,020.68, 280,104.13 and 118,121.34

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Solution

The fourth proportional to 203,020.68, 280,104.13 and 118,121.34 is: 162,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,020.68 : 280,104.13 = 118,121.34 : x
  2. Step 2: Convert to fraction form
    203,020.68/280,104.13 = 118,121.34/x
  3. Step 3: Cross multiply
    203,020.68x = 280,104.13 × 118,121.34
  4. Step 4: Simplify right side
    203,020.68x = 33,086,274,879.83
  5. Step 5: Solve for x
    x = 33,086,274,879.83/203,020.68
  6. Step 6: Final answer
    x = 162,969.97

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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.