Home / 118,974.03-164,220.89-76,532.55

Finding the Fourth Proportional to 118,974.03, 164,220.89 and 76,532.55

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Solution

The fourth proportional to 118,974.03, 164,220.89 and 76,532.55 is: 105,638.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,974.03 : 164,220.89 = 76,532.55 : x
  2. Step 2: Convert to fraction form
    118,974.03/164,220.89 = 76,532.55/x
  3. Step 3: Cross multiply
    118,974.03x = 164,220.89 × 76,532.55
  4. Step 4: Simplify right side
    118,974.03x = 12,568,243,092.31
  5. Step 5: Solve for x
    x = 12,568,243,092.31/118,974.03
  6. Step 6: Final answer
    x = 105,638.54

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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.