Home / 143,270.78-197,702.10-82,845.33

Finding the Fourth Proportional to 143,270.78, 197,702.10 and 82,845.33

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Solution

The fourth proportional to 143,270.78, 197,702.10 and 82,845.33 is: 114,319.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,270.78 : 197,702.10 = 82,845.33 : x
  2. Step 2: Convert to fraction form
    143,270.78/197,702.10 = 82,845.33/x
  3. Step 3: Cross multiply
    143,270.78x = 197,702.10 × 82,845.33
  4. Step 4: Simplify right side
    143,270.78x = 16,378,695,716.19
  5. Step 5: Solve for x
    x = 16,378,695,716.19/143,270.78
  6. Step 6: Final answer
    x = 114,319.87

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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.