Home / 143,309.73-197,771.51-82,874.61

Finding the Fourth Proportional to 143,309.73, 197,771.51 and 82,874.61

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Solution

The fourth proportional to 143,309.73, 197,771.51 and 82,874.61 is: 114,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,309.73 : 197,771.51 = 82,874.61 : x
  2. Step 2: Convert to fraction form
    143,309.73/197,771.51 = 82,874.61/x
  3. Step 3: Cross multiply
    143,309.73x = 197,771.51 × 82,874.61
  4. Step 4: Simplify right side
    143,309.73x = 16,390,236,345.99
  5. Step 5: Solve for x
    x = 16,390,236,345.99/143,309.73
  6. Step 6: Final answer
    x = 114,369.32

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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.