Home / 143,106.84-197,496.63-82,680.03

Finding the Fourth Proportional to 143,106.84, 197,496.63 and 82,680.03

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Solution

The fourth proportional to 143,106.84, 197,496.63 and 82,680.03 is: 114,103.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,106.84 : 197,496.63 = 82,680.03 : x
  2. Step 2: Convert to fraction form
    143,106.84/197,496.63 = 82,680.03/x
  3. Step 3: Cross multiply
    143,106.84x = 197,496.63 × 82,680.03
  4. Step 4: Simplify right side
    143,106.84x = 16,329,027,293.30
  5. Step 5: Solve for x
    x = 16,329,027,293.30/143,106.84
  6. Step 6: Final answer
    x = 114,103.75

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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.