Home / 202,435.20-279,357.66-111,795

Finding the Fourth Proportional to 202,435.20, 279,357.66 and 111,795

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Solution

The fourth proportional to 202,435.20, 279,357.66 and 111,795 is: 154,275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,435.20 : 279,357.66 = 111,795 : x
  2. Step 2: Convert to fraction form
    202,435.20/279,357.66 = 111,795/x
  3. Step 3: Cross multiply
    202,435.20x = 279,357.66 × 111,795
  4. Step 4: Simplify right side
    202,435.20x = 31,230,789,599.70
  5. Step 5: Solve for x
    x = 31,230,789,599.70/202,435.20
  6. Step 6: Final answer
    x = 154,275.49

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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.