Home / 202,905.50-279,999.32-111,022.79

Finding the Fourth Proportional to 202,905.50, 279,999.32 and 111,022.79

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Solution

The fourth proportional to 202,905.50, 279,999.32 and 111,022.79 is: 153,205.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,905.50 : 279,999.32 = 111,022.79 : x
  2. Step 2: Convert to fraction form
    202,905.50/279,999.32 = 111,022.79/x
  3. Step 3: Cross multiply
    202,905.50x = 279,999.32 × 111,022.79
  4. Step 4: Simplify right side
    202,905.50x = 31,086,303,749.39
  5. Step 5: Solve for x
    x = 31,086,303,749.39/202,905.50
  6. Step 6: Final answer
    x = 153,205.82

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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.