Home / 170,163.75-255,076.53-81,313.50

Finding the Fourth Proportional to 170,163.75, 255,076.53 and 81,313.50

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Solution

The fourth proportional to 170,163.75, 255,076.53 and 81,313.50 is: 121,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,163.75 : 255,076.53 = 81,313.50 : x
  2. Step 2: Convert to fraction form
    170,163.75/255,076.53 = 81,313.50/x
  3. Step 3: Cross multiply
    170,163.75x = 255,076.53 × 81,313.50
  4. Step 4: Simplify right side
    170,163.75x = 20,741,165,422.16
  5. Step 5: Solve for x
    x = 20,741,165,422.16/170,163.75
  6. Step 6: Final answer
    x = 121,889.45

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1.5x scale

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.