Home / 203,643.22-281,029.19-112,999.54

Finding the Fourth Proportional to 203,643.22, 281,029.19 and 112,999.54

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Solution

The fourth proportional to 203,643.22, 281,029.19 and 112,999.54 is: 155,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,643.22 : 281,029.19 = 112,999.54 : x
  2. Step 2: Convert to fraction form
    203,643.22/281,029.19 = 112,999.54/x
  3. Step 3: Cross multiply
    203,643.22x = 281,029.19 × 112,999.54
  4. Step 4: Simplify right side
    203,643.22x = 31,756,169,196.57
  5. Step 5: Solve for x
    x = 31,756,169,196.57/203,643.22
  6. Step 6: Final answer
    x = 155,940.22

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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.