Home / 170,021.93-255,033.32-81,255.24

Finding the Fourth Proportional to 170,021.93, 255,033.32 and 81,255.24

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Solution

The fourth proportional to 170,021.93, 255,033.32 and 81,255.24 is: 121,883.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,021.93 : 255,033.32 = 81,255.24 : x
  2. Step 2: Convert to fraction form
    170,021.93/255,033.32 = 81,255.24/x
  3. Step 3: Cross multiply
    170,021.93x = 255,033.32 × 81,255.24
  4. Step 4: Simplify right side
    170,021.93x = 20,722,793,218.32
  5. Step 5: Solve for x
    x = 20,722,793,218.32/170,021.93
  6. Step 6: Final answer
    x = 121,883.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.