Home / 203,858.08-281,323.06-111,979.17

Finding the Fourth Proportional to 203,858.08, 281,323.06 and 111,979.17

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Solution

The fourth proportional to 203,858.08, 281,323.06 and 111,979.17 is: 154,530.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,858.08 : 281,323.06 = 111,979.17 : x
  2. Step 2: Convert to fraction form
    203,858.08/281,323.06 = 111,979.17/x
  3. Step 3: Cross multiply
    203,858.08x = 281,323.06 × 111,979.17
  4. Step 4: Simplify right side
    203,858.08x = 31,502,322,480.71
  5. Step 5: Solve for x
    x = 31,502,322,480.71/203,858.08
  6. Step 6: Final answer
    x = 154,530.66

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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.