Home / 203,917.87-281,508.91-127,479.45

Finding the Fourth Proportional to 203,917.87, 281,508.91 and 127,479.45

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Solution

The fourth proportional to 203,917.87, 281,508.91 and 127,479.45 is: 175,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,917.87 : 281,508.91 = 127,479.45 : x
  2. Step 2: Convert to fraction form
    203,917.87/281,508.91 = 127,479.45/x
  3. Step 3: Cross multiply
    203,917.87x = 281,508.91 × 127,479.45
  4. Step 4: Simplify right side
    203,917.87x = 35,886,601,016.90
  5. Step 5: Solve for x
    x = 35,886,601,016.90/203,917.87
  6. Step 6: Final answer
    x = 175,985.56

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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.