Home / 143,151.42-197,577.96-82,724.60

Finding the Fourth Proportional to 143,151.42, 197,577.96 and 82,724.60

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Solution

The fourth proportional to 143,151.42, 197,577.96 and 82,724.60 is: 114,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,151.42 : 197,577.96 = 82,724.60 : x
  2. Step 2: Convert to fraction form
    143,151.42/197,577.96 = 82,724.60/x
  3. Step 3: Cross multiply
    143,151.42x = 197,577.96 × 82,724.60
  4. Step 4: Simplify right side
    143,151.42x = 16,344,557,709.82
  5. Step 5: Solve for x
    x = 16,344,557,709.82/143,151.42
  6. Step 6: Final answer
    x = 114,176.71

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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.