Finding the Fourth Proportional to 157,481.20, 236,221.80 and 122,051.80
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Solution
The fourth proportional to 157,481.20, 236,221.80 and 122,051.80 is: 183,077.70
Step by Step Solution
- Step 1: Write the proportion equation
157,481.20 : 236,221.80 = 122,051.80 : x - Step 2: Convert to fraction form
157,481.20/236,221.80 = 122,051.80/x - Step 3: Cross multiply
157,481.20x = 236,221.80 × 122,051.80 - Step 4: Simplify right side
157,481.20x = 28,831,295,889.24 - Step 5: Solve for x
x = 28,831,295,889.24/157,481.20 - Step 6: Final answer
x = 183,077.70
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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.