Home / 188,091.06-259,564.95-103,209.54

Finding the Fourth Proportional to 188,091.06, 259,564.95 and 103,209.54

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Solution

The fourth proportional to 188,091.06, 259,564.95 and 103,209.54 is: 142,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,091.06 : 259,564.95 = 103,209.54 : x
  2. Step 2: Convert to fraction form
    188,091.06/259,564.95 = 103,209.54/x
  3. Step 3: Cross multiply
    188,091.06x = 259,564.95 × 103,209.54
  4. Step 4: Simplify right side
    188,091.06x = 26,789,579,089.62
  5. Step 5: Solve for x
    x = 26,789,579,089.62/188,091.06
  6. Step 6: Final answer
    x = 142,428.77

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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.