Home / 127,249.49-190,831.85-51,328.42

Finding the Fourth Proportional to 127,249.49, 190,831.85 and 51,328.42

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Solution

The fourth proportional to 127,249.49, 190,831.85 and 51,328.42 is: 76,975.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,249.49 : 190,831.85 = 51,328.42 : x
  2. Step 2: Convert to fraction form
    127,249.49/190,831.85 = 51,328.42/x
  3. Step 3: Cross multiply
    127,249.49x = 190,831.85 × 51,328.42
  4. Step 4: Simplify right side
    127,249.49x = 9,795,097,584.72
  5. Step 5: Solve for x
    x = 9,795,097,584.72/127,249.49
  6. Step 6: Final answer
    x = 76,975.53

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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.