Home / 203,933.90-305,408.59-122,647.16

Finding the Fourth Proportional to 203,933.90, 305,408.59 and 122,647.16

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Solution

The fourth proportional to 203,933.90, 305,408.59 and 122,647.16 is: 183,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,933.90 : 305,408.59 = 122,647.16 : x
  2. Step 2: Convert to fraction form
    203,933.90/305,408.59 = 122,647.16/x
  3. Step 3: Cross multiply
    203,933.90x = 305,408.59 × 122,647.16
  4. Step 4: Simplify right side
    203,933.90x = 37,457,496,203.10
  5. Step 5: Solve for x
    x = 37,457,496,203.10/203,933.90
  6. Step 6: Final answer
    x = 183,674.69

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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.