Home / 143,297.46-197,772.28-103,144.14

Finding the Fourth Proportional to 143,297.46, 197,772.28 and 103,144.14

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Solution

The fourth proportional to 143,297.46, 197,772.28 and 103,144.14 is: 142,354.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,297.46 : 197,772.28 = 103,144.14 : x
  2. Step 2: Convert to fraction form
    143,297.46/197,772.28 = 103,144.14/x
  3. Step 3: Cross multiply
    143,297.46x = 197,772.28 × 103,144.14
  4. Step 4: Simplify right side
    143,297.46x = 20,399,051,736.44
  5. Step 5: Solve for x
    x = 20,399,051,736.44/143,297.46
  6. Step 6: Final answer
    x = 142,354.59

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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.