Home / 126,831.82-190,249.32-38,080.16

Finding the Fourth Proportional to 126,831.82, 190,249.32 and 38,080.16

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Solution

The fourth proportional to 126,831.82, 190,249.32 and 38,080.16 is: 57,120.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,831.82 : 190,249.32 = 38,080.16 : x
  2. Step 2: Convert to fraction form
    126,831.82/190,249.32 = 38,080.16/x
  3. Step 3: Cross multiply
    126,831.82x = 190,249.32 × 38,080.16
  4. Step 4: Simplify right side
    126,831.82x = 7,244,724,545.49
  5. Step 5: Solve for x
    x = 7,244,724,545.49/126,831.82
  6. Step 6: Final answer
    x = 57,120.72

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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.