Home / 221,764.50-306,035.01-121,163.22

Finding the Fourth Proportional to 221,764.50, 306,035.01 and 121,163.22

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Solution

The fourth proportional to 221,764.50, 306,035.01 and 121,163.22 is: 167,205.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,764.50 : 306,035.01 = 121,163.22 : x
  2. Step 2: Convert to fraction form
    221,764.50/306,035.01 = 121,163.22/x
  3. Step 3: Cross multiply
    221,764.50x = 306,035.01 × 121,163.22
  4. Step 4: Simplify right side
    221,764.50x = 37,080,187,244.33
  5. Step 5: Solve for x
    x = 37,080,187,244.33/221,764.50
  6. Step 6: Final answer
    x = 167,205.24

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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.