Home / 143,142.52-197,545.62-82,724.23

Finding the Fourth Proportional to 143,142.52, 197,545.62 and 82,724.23

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Solution

The fourth proportional to 143,142.52, 197,545.62 and 82,724.23 is: 114,164.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,142.52 : 197,545.62 = 82,724.23 : x
  2. Step 2: Convert to fraction form
    143,142.52/197,545.62 = 82,724.23/x
  3. Step 3: Cross multiply
    143,142.52x = 197,545.62 × 82,724.23
  4. Step 4: Simplify right side
    143,142.52x = 16,341,809,304.37
  5. Step 5: Solve for x
    x = 16,341,809,304.37/143,142.52
  6. Step 6: Final answer
    x = 114,164.61

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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.