Home / 143,188.73-197,588.87-82,763.28

Finding the Fourth Proportional to 143,188.73, 197,588.87 and 82,763.28

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Solution

The fourth proportional to 143,188.73, 197,588.87 and 82,763.28 is: 114,206.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,188.73 : 197,588.87 = 82,763.28 : x
  2. Step 2: Convert to fraction form
    143,188.73/197,588.87 = 82,763.28/x
  3. Step 3: Cross multiply
    143,188.73x = 197,588.87 × 82,763.28
  4. Step 4: Simplify right side
    143,188.73x = 16,353,102,869.24
  5. Step 5: Solve for x
    x = 16,353,102,869.24/143,188.73
  6. Step 6: Final answer
    x = 114,206.64

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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.