Home / 136,782.54-188,791.38-80,212.14

Finding the Fourth Proportional to 136,782.54, 188,791.38 and 80,212.14

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Solution

The fourth proportional to 136,782.54, 188,791.38 and 80,212.14 is: 110,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,782.54 : 188,791.38 = 80,212.14 : x
  2. Step 2: Convert to fraction form
    136,782.54/188,791.38 = 80,212.14/x
  3. Step 3: Cross multiply
    136,782.54x = 188,791.38 × 80,212.14
  4. Step 4: Simplify right side
    136,782.54x = 15,143,360,603.35
  5. Step 5: Solve for x
    x = 15,143,360,603.35/136,782.54
  6. Step 6: Final answer
    x = 110,711.21

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1.5x scale

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.