Home / 203,020.75-280,104.21-118,121.41

Finding the Fourth Proportional to 203,020.75, 280,104.21 and 118,121.41

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Solution

The fourth proportional to 203,020.75, 280,104.21 and 118,121.41 is: 162,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,020.75 : 280,104.21 = 118,121.41 : x
  2. Step 2: Convert to fraction form
    203,020.75/280,104.21 = 118,121.41/x
  3. Step 3: Cross multiply
    203,020.75x = 280,104.21 × 118,121.41
  4. Step 4: Simplify right side
    203,020.75x = 33,086,304,232.14
  5. Step 5: Solve for x
    x = 33,086,304,232.14/203,020.75
  6. Step 6: Final answer
    x = 162,970.06

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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.