Home / 202,178.48-279,039.32-121,650.41

Finding the Fourth Proportional to 202,178.48, 279,039.32 and 121,650.41

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Solution

The fourth proportional to 202,178.48, 279,039.32 and 121,650.41 is: 167,897.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,178.48 : 279,039.32 = 121,650.41 : x
  2. Step 2: Convert to fraction form
    202,178.48/279,039.32 = 121,650.41/x
  3. Step 3: Cross multiply
    202,178.48x = 279,039.32 × 121,650.41
  4. Step 4: Simplify right side
    202,178.48x = 33,945,245,680.67
  5. Step 5: Solve for x
    x = 33,945,245,680.67/202,178.48
  6. Step 6: Final answer
    x = 167,897.43

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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.