Home / 136,683.36-188,623.26-80,094.78

Finding the Fourth Proportional to 136,683.36, 188,623.26 and 80,094.78

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Solution

The fourth proportional to 136,683.36, 188,623.26 and 80,094.78 is: 110,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,683.36 : 188,623.26 = 80,094.78 : x
  2. Step 2: Convert to fraction form
    136,683.36/188,623.26 = 80,094.78/x
  3. Step 3: Cross multiply
    136,683.36x = 188,623.26 × 80,094.78
  4. Step 4: Simplify right side
    136,683.36x = 15,107,738,512.58
  5. Step 5: Solve for x
    x = 15,107,738,512.58/136,683.36
  6. Step 6: Final answer
    x = 110,530.93

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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.