Home / 127,172.20-190,758.30-97,738.60

Finding the Fourth Proportional to 127,172.20, 190,758.30 and 97,738.60

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Solution

The fourth proportional to 127,172.20, 190,758.30 and 97,738.60 is: 146,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,172.20 : 190,758.30 = 97,738.60 : x
  2. Step 2: Convert to fraction form
    127,172.20/190,758.30 = 97,738.60/x
  3. Step 3: Cross multiply
    127,172.20x = 190,758.30 × 97,738.60
  4. Step 4: Simplify right side
    127,172.20x = 18,644,449,180.38
  5. Step 5: Solve for x
    x = 18,644,449,180.38/127,172.20
  6. Step 6: Final answer
    x = 146,607.90

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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.