Home / 126,738.20-190,107.30-118,962.20

Finding the Fourth Proportional to 126,738.20, 190,107.30 and 118,962.20

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Solution

The fourth proportional to 126,738.20, 190,107.30 and 118,962.20 is: 178,443.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,738.20 : 190,107.30 = 118,962.20 : x
  2. Step 2: Convert to fraction form
    126,738.20/190,107.30 = 118,962.20/x
  3. Step 3: Cross multiply
    126,738.20x = 190,107.30 × 118,962.20
  4. Step 4: Simplify right side
    126,738.20x = 22,615,582,644.06
  5. Step 5: Solve for x
    x = 22,615,582,644.06/126,738.20
  6. Step 6: Final answer
    x = 178,443.30

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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.