Home / 143,106.75-197,496.54-82,679.94

Finding the Fourth Proportional to 143,106.75, 197,496.54 and 82,679.94

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Solution

The fourth proportional to 143,106.75, 197,496.54 and 82,679.94 is: 114,103.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,106.75 : 197,496.54 = 82,679.94 : x
  2. Step 2: Convert to fraction form
    143,106.75/197,496.54 = 82,679.94/x
  3. Step 3: Cross multiply
    143,106.75x = 197,496.54 × 82,679.94
  4. Step 4: Simplify right side
    143,106.75x = 16,329,002,077.41
  5. Step 5: Solve for x
    x = 16,329,002,077.41/143,106.75
  6. Step 6: Final answer
    x = 114,103.65

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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.