Home / 127,231.60-190,847.40-121,982.80

Finding the Fourth Proportional to 127,231.60, 190,847.40 and 121,982.80

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Solution

The fourth proportional to 127,231.60, 190,847.40 and 121,982.80 is: 182,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,231.60 : 190,847.40 = 121,982.80 : x
  2. Step 2: Convert to fraction form
    127,231.60/190,847.40 = 121,982.80/x
  3. Step 3: Cross multiply
    127,231.60x = 190,847.40 × 121,982.80
  4. Step 4: Simplify right side
    127,231.60x = 23,280,100,224.72
  5. Step 5: Solve for x
    x = 23,280,100,224.72/127,231.60
  6. Step 6: Final answer
    x = 182,974.20

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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.