Home / 121,119.78-181,708.42-41,163.06

Finding the Fourth Proportional to 121,119.78, 181,708.42 and 41,163.06

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Solution

The fourth proportional to 121,119.78, 181,708.42 and 41,163.06 is: 61,754.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,119.78 : 181,708.42 = 41,163.06 : x
  2. Step 2: Convert to fraction form
    121,119.78/181,708.42 = 41,163.06/x
  3. Step 3: Cross multiply
    121,119.78x = 181,708.42 × 41,163.06
  4. Step 4: Simplify right side
    121,119.78x = 7,479,674,594.97
  5. Step 5: Solve for x
    x = 7,479,674,594.97/121,119.78
  6. Step 6: Final answer
    x = 61,754.36

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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.