Home / 127,076.58-190,240.38-111,312.45

Finding the Fourth Proportional to 127,076.58, 190,240.38 and 111,312.45

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Solution

The fourth proportional to 127,076.58, 190,240.38 and 111,312.45 is: 166,640.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,076.58 : 190,240.38 = 111,312.45 : x
  2. Step 2: Convert to fraction form
    127,076.58/190,240.38 = 111,312.45/x
  3. Step 3: Cross multiply
    127,076.58x = 190,240.38 × 111,312.45
  4. Step 4: Simplify right side
    127,076.58x = 21,176,122,786.73
  5. Step 5: Solve for x
    x = 21,176,122,786.73/127,076.58
  6. Step 6: Final answer
    x = 166,640.64

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1.5x scale

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.