Home / 143,188.36-197,588.38-82,762.92

Finding the Fourth Proportional to 143,188.36, 197,588.38 and 82,762.92

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Solution

The fourth proportional to 143,188.36, 197,588.38 and 82,762.92 is: 114,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,188.36 : 197,588.38 = 82,762.92 : x
  2. Step 2: Convert to fraction form
    143,188.36/197,588.38 = 82,762.92/x
  3. Step 3: Cross multiply
    143,188.36x = 197,588.38 × 82,762.92
  4. Step 4: Simplify right side
    143,188.36x = 16,352,991,286.87
  5. Step 5: Solve for x
    x = 16,352,991,286.87/143,188.36
  6. Step 6: Final answer
    x = 114,206.15

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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.