Home / 137,748.56-190,106.03-80,383.25

Finding the Fourth Proportional to 137,748.56, 190,106.03 and 80,383.25

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Solution

The fourth proportional to 137,748.56, 190,106.03 and 80,383.25 is: 110,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,748.56 : 190,106.03 = 80,383.25 : x
  2. Step 2: Convert to fraction form
    137,748.56/190,106.03 = 80,383.25/x
  3. Step 3: Cross multiply
    137,748.56x = 190,106.03 × 80,383.25
  4. Step 4: Simplify right side
    137,748.56x = 15,281,339,183.55
  5. Step 5: Solve for x
    x = 15,281,339,183.55/137,748.56
  6. Step 6: Final answer
    x = 110,936.48

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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.