Home / 136,518.09-188,404.43-82,805.37

Finding the Fourth Proportional to 136,518.09, 188,404.43 and 82,805.37

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Solution

The fourth proportional to 136,518.09, 188,404.43 and 82,805.37 is: 114,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,518.09 : 188,404.43 = 82,805.37 : x
  2. Step 2: Convert to fraction form
    136,518.09/188,404.43 = 82,805.37/x
  3. Step 3: Cross multiply
    136,518.09x = 188,404.43 × 82,805.37
  4. Step 4: Simplify right side
    136,518.09x = 15,600,898,121.76
  5. Step 5: Solve for x
    x = 15,600,898,121.76/136,518.09
  6. Step 6: Final answer
    x = 114,277.15

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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.