Home / 168,976.23-233,171.37-100,979.67

Finding the Fourth Proportional to 168,976.23, 233,171.37 and 100,979.67

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Solution

The fourth proportional to 168,976.23, 233,171.37 and 100,979.67 is: 139,342.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,976.23 : 233,171.37 = 100,979.67 : x
  2. Step 2: Convert to fraction form
    168,976.23/233,171.37 = 100,979.67/x
  3. Step 3: Cross multiply
    168,976.23x = 233,171.37 × 100,979.67
  4. Step 4: Simplify right side
    168,976.23x = 23,545,567,996.05
  5. Step 5: Solve for x
    x = 23,545,567,996.05/168,976.23
  6. Step 6: Final answer
    x = 139,342.49

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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.