Home / 218,185.42-301,093.99-122,690.07

Finding the Fourth Proportional to 218,185.42, 301,093.99 and 122,690.07

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Solution

The fourth proportional to 218,185.42, 301,093.99 and 122,690.07 is: 169,311.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,185.42 : 301,093.99 = 122,690.07 : x
  2. Step 2: Convert to fraction form
    218,185.42/301,093.99 = 122,690.07/x
  3. Step 3: Cross multiply
    218,185.42x = 301,093.99 × 122,690.07
  4. Step 4: Simplify right side
    218,185.42x = 36,941,242,709.68
  5. Step 5: Solve for x
    x = 36,941,242,709.68/218,185.42
  6. Step 6: Final answer
    x = 169,311.23

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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.