Home / 143,212.67-197,607.42-82,761.15

Finding the Fourth Proportional to 143,212.67, 197,607.42 and 82,761.15

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Solution

The fourth proportional to 143,212.67, 197,607.42 and 82,761.15 is: 114,195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,212.67 : 197,607.42 = 82,761.15 : x
  2. Step 2: Convert to fraction form
    143,212.67/197,607.42 = 82,761.15/x
  3. Step 3: Cross multiply
    143,212.67x = 197,607.42 × 82,761.15
  4. Step 4: Simplify right side
    143,212.67x = 16,354,217,327.73
  5. Step 5: Solve for x
    x = 16,354,217,327.73/143,212.67
  6. Step 6: Final answer
    x = 114,195.33

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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.