Home / 236,682.72-355,027.22-78,911.24

Finding the Fourth Proportional to 236,682.72, 355,027.22 and 78,911.24

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Solution

The fourth proportional to 236,682.72, 355,027.22 and 78,911.24 is: 118,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,682.72 : 355,027.22 = 78,911.24 : x
  2. Step 2: Convert to fraction form
    236,682.72/355,027.22 = 78,911.24/x
  3. Step 3: Cross multiply
    236,682.72x = 355,027.22 × 78,911.24
  4. Step 4: Simplify right side
    236,682.72x = 28,015,638,163.95
  5. Step 5: Solve for x
    x = 28,015,638,163.95/236,682.72
  6. Step 6: Final answer
    x = 118,367.91

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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.