Home / 168,020.24-231,765.32-99,991.52

Finding the Fourth Proportional to 168,020.24, 231,765.32 and 99,991.52

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Solution

The fourth proportional to 168,020.24, 231,765.32 and 99,991.52 is: 137,927.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,020.24 : 231,765.32 = 99,991.52 : x
  2. Step 2: Convert to fraction form
    168,020.24/231,765.32 = 99,991.52/x
  3. Step 3: Cross multiply
    168,020.24x = 231,765.32 × 99,991.52
  4. Step 4: Simplify right side
    168,020.24x = 23,174,566,630.09
  5. Step 5: Solve for x
    x = 23,174,566,630.09/168,020.24
  6. Step 6: Final answer
    x = 137,927.23

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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.