Home / 202,179.48-279,040.70-121,651.41

Finding the Fourth Proportional to 202,179.48, 279,040.70 and 121,651.41

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Solution

The fourth proportional to 202,179.48, 279,040.70 and 121,651.41 is: 167,898.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,179.48 : 279,040.70 = 121,651.41 : x
  2. Step 2: Convert to fraction form
    202,179.48/279,040.70 = 121,651.41/x
  3. Step 3: Cross multiply
    202,179.48x = 279,040.70 × 121,651.41
  4. Step 4: Simplify right side
    202,179.48x = 33,945,694,602.39
  5. Step 5: Solve for x
    x = 33,945,694,602.39/202,179.48
  6. Step 6: Final answer
    x = 167,898.81

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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.