Home / 209,629.26-289,295.42-117,764.66

Finding the Fourth Proportional to 209,629.26, 289,295.42 and 117,764.66

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Solution

The fourth proportional to 209,629.26, 289,295.42 and 117,764.66 is: 162,519.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,629.26 : 289,295.42 = 117,764.66 : x
  2. Step 2: Convert to fraction form
    209,629.26/289,295.42 = 117,764.66/x
  3. Step 3: Cross multiply
    209,629.26x = 289,295.42 × 117,764.66
  4. Step 4: Simplify right side
    209,629.26x = 34,068,776,910.27
  5. Step 5: Solve for x
    x = 34,068,776,910.27/209,629.26
  6. Step 6: Final answer
    x = 162,519.19

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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.