Home / 143,187.05-197,586.57-82,761.61

Finding the Fourth Proportional to 143,187.05, 197,586.57 and 82,761.61

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Solution

The fourth proportional to 143,187.05, 197,586.57 and 82,761.61 is: 114,204.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,187.05 : 197,586.57 = 82,761.61 : x
  2. Step 2: Convert to fraction form
    143,187.05/197,586.57 = 82,761.61/x
  3. Step 3: Cross multiply
    143,187.05x = 197,586.57 × 82,761.61
  4. Step 4: Simplify right side
    143,187.05x = 16,352,582,647.58
  5. Step 5: Solve for x
    x = 16,352,582,647.58/143,187.05
  6. Step 6: Final answer
    x = 114,204.34

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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.