Home / 118,929.75-164,123.06-68,628.75

Finding the Fourth Proportional to 118,929.75, 164,123.06 and 68,628.75

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Solution

The fourth proportional to 118,929.75, 164,123.06 and 68,628.75 is: 94,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,929.75 : 164,123.06 = 68,628.75 : x
  2. Step 2: Convert to fraction form
    118,929.75/164,123.06 = 68,628.75/x
  3. Step 3: Cross multiply
    118,929.75x = 164,123.06 × 68,628.75
  4. Step 4: Simplify right side
    118,929.75x = 11,263,560,453.98
  5. Step 5: Solve for x
    x = 11,263,560,453.98/118,929.75
  6. Step 6: Final answer
    x = 94,707.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.