Home / 202,181.55-278,920.26-117,249.36

Finding the Fourth Proportional to 202,181.55, 278,920.26 and 117,249.36

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Solution

The fourth proportional to 202,181.55, 278,920.26 and 117,249.36 is: 161,751.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,181.55 : 278,920.26 = 117,249.36 : x
  2. Step 2: Convert to fraction form
    202,181.55/278,920.26 = 117,249.36/x
  3. Step 3: Cross multiply
    202,181.55x = 278,920.26 × 117,249.36
  4. Step 4: Simplify right side
    202,181.55x = 32,703,221,976.03
  5. Step 5: Solve for x
    x = 32,703,221,976.03/202,181.55
  6. Step 6: Final answer
    x = 161,751.76

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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.