Home / 188,669.16-260,358.21-103,786.38

Finding the Fourth Proportional to 188,669.16, 260,358.21 and 103,786.38

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Solution

The fourth proportional to 188,669.16, 260,358.21 and 103,786.38 is: 143,222.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,669.16 : 260,358.21 = 103,786.38 : x
  2. Step 2: Convert to fraction form
    188,669.16/260,358.21 = 103,786.38/x
  3. Step 3: Cross multiply
    188,669.16x = 260,358.21 × 103,786.38
  4. Step 4: Simplify right side
    188,669.16x = 27,021,636,119.18
  5. Step 5: Solve for x
    x = 27,021,636,119.18/188,669.16
  6. Step 6: Final answer
    x = 143,222.33

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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.