Home / 203,933.54-305,944.01-85,536.65

Finding the Fourth Proportional to 203,933.54, 305,944.01 and 85,536.65

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Solution

The fourth proportional to 203,933.54, 305,944.01 and 85,536.65 is: 128,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,933.54 : 305,944.01 = 85,536.65 : x
  2. Step 2: Convert to fraction form
    203,933.54/305,944.01 = 85,536.65/x
  3. Step 3: Cross multiply
    203,933.54x = 305,944.01 × 85,536.65
  4. Step 4: Simplify right side
    203,933.54x = 26,169,425,702.97
  5. Step 5: Solve for x
    x = 26,169,425,702.97/203,933.54
  6. Step 6: Final answer
    x = 128,323.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.