Home / 143,371.62-197,831.16-82,108.28

Finding the Fourth Proportional to 143,371.62, 197,831.16 and 82,108.28

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Solution

The fourth proportional to 143,371.62, 197,831.16 and 82,108.28 is: 113,297.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,371.62 : 197,831.16 = 82,108.28 : x
  2. Step 2: Convert to fraction form
    143,371.62/197,831.16 = 82,108.28/x
  3. Step 3: Cross multiply
    143,371.62x = 197,831.16 × 82,108.28
  4. Step 4: Simplify right side
    143,371.62x = 16,243,576,278.00
  5. Step 5: Solve for x
    x = 16,243,576,278.00/143,371.62
  6. Step 6: Final answer
    x = 113,297.01

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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.