Home / 126,927.20-190,261.20-74,309.60

Finding the Fourth Proportional to 126,927.20, 190,261.20 and 74,309.60

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Solution

The fourth proportional to 126,927.20, 190,261.20 and 74,309.60 is: 111,388.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,927.20 : 190,261.20 = 74,309.60 : x
  2. Step 2: Convert to fraction form
    126,927.20/190,261.20 = 74,309.60/x
  3. Step 3: Cross multiply
    126,927.20x = 190,261.20 × 74,309.60
  4. Step 4: Simplify right side
    126,927.20x = 14,138,233,667.52
  5. Step 5: Solve for x
    x = 14,138,233,667.52/126,927.20
  6. Step 6: Final answer
    x = 111,388.53

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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.