Home / 118,855.75-163,991.56-70,469.04

Finding the Fourth Proportional to 118,855.75, 163,991.56 and 70,469.04

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Solution

The fourth proportional to 118,855.75, 163,991.56 and 70,469.04 is: 97,229.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,855.75 : 163,991.56 = 70,469.04 : x
  2. Step 2: Convert to fraction form
    118,855.75/163,991.56 = 70,469.04/x
  3. Step 3: Cross multiply
    118,855.75x = 163,991.56 × 70,469.04
  4. Step 4: Simplify right side
    118,855.75x = 11,556,327,801.30
  5. Step 5: Solve for x
    x = 11,556,327,801.30/118,855.75
  6. Step 6: Final answer
    x = 97,229.86

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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.