Finding the Fourth Proportional to 110,239.80, 165,228.42 and 76,778.70
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Solution
The fourth proportional to 110,239.80, 165,228.42 and 76,778.70 is: 115,076.62
Step by Step Solution
- Step 1: Write the proportion equation
110,239.80 : 165,228.42 = 76,778.70 : x - Step 2: Convert to fraction form
110,239.80/165,228.42 = 76,778.70/x - Step 3: Cross multiply
110,239.80x = 165,228.42 × 76,778.70 - Step 4: Simplify right side
110,239.80x = 12,686,023,290.65 - Step 5: Solve for x
x = 12,686,023,290.65/110,239.80 - Step 6: Final answer
x = 115,076.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.