Home / 188,443.19-259,934.87-123,919.81

Finding the Fourth Proportional to 188,443.19, 259,934.87 and 123,919.81

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Solution

The fourth proportional to 188,443.19, 259,934.87 and 123,919.81 is: 170,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,443.19 : 259,934.87 = 123,919.81 : x
  2. Step 2: Convert to fraction form
    188,443.19/259,934.87 = 123,919.81/x
  3. Step 3: Cross multiply
    188,443.19x = 259,934.87 × 123,919.81
  4. Step 4: Simplify right side
    188,443.19x = 32,211,079,362.74
  5. Step 5: Solve for x
    x = 32,211,079,362.74/188,443.19
  6. Step 6: Final answer
    x = 170,932.57

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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.