Home / 236,682.93-355,027.53-78,911.43

Finding the Fourth Proportional to 236,682.93, 355,027.53 and 78,911.43

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Solution

The fourth proportional to 236,682.93, 355,027.53 and 78,911.43 is: 118,368.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,682.93 : 355,027.53 = 78,911.43 : x
  2. Step 2: Convert to fraction form
    236,682.93/355,027.53 = 78,911.43/x
  3. Step 3: Cross multiply
    236,682.93x = 355,027.53 × 78,911.43
  4. Step 4: Simplify right side
    236,682.93x = 28,015,729,785.75
  5. Step 5: Solve for x
    x = 28,015,729,785.75/236,682.93
  6. Step 6: Final answer
    x = 118,368.19

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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.