Home / 188,090.69-259,564.43-103,209.17

Finding the Fourth Proportional to 188,090.69, 259,564.43 and 103,209.17

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Solution

The fourth proportional to 188,090.69, 259,564.43 and 103,209.17 is: 142,428.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,090.69 : 259,564.43 = 103,209.17 : x
  2. Step 2: Convert to fraction form
    188,090.69/259,564.43 = 103,209.17/x
  3. Step 3: Cross multiply
    188,090.69x = 259,564.43 × 103,209.17
  4. Step 4: Simplify right side
    188,090.69x = 26,789,428,342.02
  5. Step 5: Solve for x
    x = 26,789,428,342.02/188,090.69
  6. Step 6: Final answer
    x = 142,428.26

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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.