Home / 131,247.73-181,105.23-82,831.60

Finding the Fourth Proportional to 131,247.73, 181,105.23 and 82,831.60

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Solution

The fourth proportional to 131,247.73, 181,105.23 and 82,831.60 is: 114,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,247.73 : 181,105.23 = 82,831.60 : x
  2. Step 2: Convert to fraction form
    131,247.73/181,105.23 = 82,831.60/x
  3. Step 3: Cross multiply
    131,247.73x = 181,105.23 × 82,831.60
  4. Step 4: Simplify right side
    131,247.73x = 15,001,235,969.27
  5. Step 5: Solve for x
    x = 15,001,235,969.27/131,247.73
  6. Step 6: Final answer
    x = 114,297.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.