Home / 202,090.41-278,910.78-168,040.35

Finding the Fourth Proportional to 202,090.41, 278,910.78 and 168,040.35

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Solution

The fourth proportional to 202,090.41, 278,910.78 and 168,040.35 is: 231,917.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,090.41 : 278,910.78 = 168,040.35 : x
  2. Step 2: Convert to fraction form
    202,090.41/278,910.78 = 168,040.35/x
  3. Step 3: Cross multiply
    202,090.41x = 278,910.78 × 168,040.35
  4. Step 4: Simplify right side
    202,090.41x = 46,868,265,089.97
  5. Step 5: Solve for x
    x = 46,868,265,089.97/202,090.41
  6. Step 6: Final answer
    x = 231,917.31

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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.