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Finding the Fourth Proportional to 188,101.39, 259,576.48 and 106,428.77

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Solution

The fourth proportional to 188,101.39, 259,576.48 and 106,428.77 is: 146,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,101.39 : 259,576.48 = 106,428.77 : x
  2. Step 2: Convert to fraction form
    188,101.39/259,576.48 = 106,428.77/x
  3. Step 3: Cross multiply
    188,101.39x = 259,576.48 × 106,428.77
  4. Step 4: Simplify right side
    188,101.39x = 27,626,405,487.33
  5. Step 5: Solve for x
    x = 27,626,405,487.33/188,101.39
  6. Step 6: Final answer
    x = 146,869.76

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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.