Home / 118,105.07-177,105.66-43,205.79

Finding the Fourth Proportional to 118,105.07, 177,105.66 and 43,205.79

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Solution

The fourth proportional to 118,105.07, 177,105.66 and 43,205.79 is: 64,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,105.07 : 177,105.66 = 43,205.79 : x
  2. Step 2: Convert to fraction form
    118,105.07/177,105.66 = 43,205.79/x
  3. Step 3: Cross multiply
    118,105.07x = 177,105.66 × 43,205.79
  4. Step 4: Simplify right side
    118,105.07x = 7,651,989,953.77
  5. Step 5: Solve for x
    x = 7,651,989,953.77/118,105.07
  6. Step 6: Final answer
    x = 64,789.68

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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.