Home / 102,181.79-140,930.98-66,383.33

Finding the Fourth Proportional to 102,181.79, 140,930.98 and 66,383.33

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Solution

The fourth proportional to 102,181.79, 140,930.98 and 66,383.33 is: 91,557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,181.79 : 140,930.98 = 66,383.33 : x
  2. Step 2: Convert to fraction form
    102,181.79/140,930.98 = 66,383.33/x
  3. Step 3: Cross multiply
    102,181.79x = 140,930.98 × 66,383.33
  4. Step 4: Simplify right side
    102,181.79x = 9,355,467,752.56
  5. Step 5: Solve for x
    x = 9,355,467,752.56/102,181.79
  6. Step 6: Final answer
    x = 91,557.09

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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.