Home / 143,243.88-197,664.97-82,818.40

Finding the Fourth Proportional to 143,243.88, 197,664.97 and 82,818.40

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Solution

The fourth proportional to 143,243.88, 197,664.97 and 82,818.40 is: 114,282.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,243.88 : 197,664.97 = 82,818.40 : x
  2. Step 2: Convert to fraction form
    143,243.88/197,664.97 = 82,818.40/x
  3. Step 3: Cross multiply
    143,243.88x = 197,664.97 × 82,818.40
  4. Step 4: Simplify right side
    143,243.88x = 16,370,296,551.45
  5. Step 5: Solve for x
    x = 16,370,296,551.45/143,243.88
  6. Step 6: Final answer
    x = 114,282.69

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1.5x scale

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.