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Finding the Fourth Proportional to 188,119.62, 259,605.08 and 103,236.68

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Solution

The fourth proportional to 188,119.62, 259,605.08 and 103,236.68 is: 142,466.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,119.62 : 259,605.08 = 103,236.68 : x
  2. Step 2: Convert to fraction form
    188,119.62/259,605.08 = 103,236.68/x
  3. Step 3: Cross multiply
    188,119.62x = 259,605.08 × 103,236.68
  4. Step 4: Simplify right side
    188,119.62x = 26,800,766,570.33
  5. Step 5: Solve for x
    x = 26,800,766,570.33/188,119.62
  6. Step 6: Final answer
    x = 142,466.62

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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.