Home / 188,315.13-259,920.14-107,789.34

Finding the Fourth Proportional to 188,315.13, 259,920.14 and 107,789.34

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Solution

The fourth proportional to 188,315.13, 259,920.14 and 107,789.34 is: 148,775.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,315.13 : 259,920.14 = 107,789.34 : x
  2. Step 2: Convert to fraction form
    188,315.13/259,920.14 = 107,789.34/x
  3. Step 3: Cross multiply
    188,315.13x = 259,920.14 × 107,789.34
  4. Step 4: Simplify right side
    188,315.13x = 28,016,619,804.36
  5. Step 5: Solve for x
    x = 28,016,619,804.36/188,315.13
  6. Step 6: Final answer
    x = 148,775.19

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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.