Home / 136,601.44-188,504.16-100,778.56

Finding the Fourth Proportional to 136,601.44, 188,504.16 and 100,778.56

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Solution

The fourth proportional to 136,601.44, 188,504.16 and 100,778.56 is: 139,070.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,601.44 : 188,504.16 = 100,778.56 : x
  2. Step 2: Convert to fraction form
    136,601.44/188,504.16 = 100,778.56/x
  3. Step 3: Cross multiply
    136,601.44x = 188,504.16 × 100,778.56
  4. Step 4: Simplify right side
    136,601.44x = 18,997,177,798.81
  5. Step 5: Solve for x
    x = 18,997,177,798.81/136,601.44
  6. Step 6: Final answer
    x = 139,070.11

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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.