Home / 122,286.16-183,429.24-80,723.44

Finding the Fourth Proportional to 122,286.16, 183,429.24 and 80,723.44

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Solution

The fourth proportional to 122,286.16, 183,429.24 and 80,723.44 is: 121,085.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,286.16 : 183,429.24 = 80,723.44 : x
  2. Step 2: Convert to fraction form
    122,286.16/183,429.24 = 80,723.44/x
  3. Step 3: Cross multiply
    122,286.16x = 183,429.24 × 80,723.44
  4. Step 4: Simplify right side
    122,286.16x = 14,807,039,249.39
  5. Step 5: Solve for x
    x = 14,807,039,249.39/122,286.16
  6. Step 6: Final answer
    x = 121,085.16

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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.