Home / 168,975.94-233,170.99-100,979.41

Finding the Fourth Proportional to 168,975.94, 233,170.99 and 100,979.41

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Solution

The fourth proportional to 168,975.94, 233,170.99 and 100,979.41 is: 139,342.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,975.94 : 233,170.99 = 100,979.41 : x
  2. Step 2: Convert to fraction form
    168,975.94/233,170.99 = 100,979.41/x
  3. Step 3: Cross multiply
    168,975.94x = 233,170.99 × 100,979.41
  4. Step 4: Simplify right side
    168,975.94x = 23,545,468,999.32
  5. Step 5: Solve for x
    x = 23,545,468,999.32/168,975.94
  6. Step 6: Final answer
    x = 139,342.14

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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.