Home / 127,297.72-190,921.98-120,975.48

Finding the Fourth Proportional to 127,297.72, 190,921.98 and 120,975.48

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Solution

The fourth proportional to 127,297.72, 190,921.98 and 120,975.48 is: 181,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,297.72 : 190,921.98 = 120,975.48 : x
  2. Step 2: Convert to fraction form
    127,297.72/190,921.98 = 120,975.48/x
  3. Step 3: Cross multiply
    127,297.72x = 190,921.98 × 120,975.48
  4. Step 4: Simplify right side
    127,297.72x = 23,096,878,173.05
  5. Step 5: Solve for x
    x = 23,096,878,173.05/127,297.72
  6. Step 6: Final answer
    x = 181,439.84

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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.