Home / 188,142.53-259,636.77-107,571.65

Finding the Fourth Proportional to 188,142.53, 259,636.77 and 107,571.65

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Solution

The fourth proportional to 188,142.53, 259,636.77 and 107,571.65 is: 148,448.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,142.53 : 259,636.77 = 107,571.65 : x
  2. Step 2: Convert to fraction form
    188,142.53/259,636.77 = 107,571.65/x
  3. Step 3: Cross multiply
    188,142.53x = 259,636.77 × 107,571.65
  4. Step 4: Simplify right side
    188,142.53x = 27,929,554,451.39
  5. Step 5: Solve for x
    x = 27,929,554,451.39/188,142.53
  6. Step 6: Final answer
    x = 148,448.92

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1.5x scale

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.