Finding the Fourth Proportional to 128,602.98, 192,811.01 and 53,744.52
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Solution
The fourth proportional to 128,602.98, 192,811.01 and 53,744.52 is: 80,577.72
Step by Step Solution
- Step 1: Write the proportion equation
128,602.98 : 192,811.01 = 53,744.52 : x - Step 2: Convert to fraction form
128,602.98/192,811.01 = 53,744.52/x - Step 3: Cross multiply
128,602.98x = 192,811.01 × 53,744.52 - Step 4: Simplify right side
128,602.98x = 10,362,534,914.44 - Step 5: Solve for x
x = 10,362,534,914.44/128,602.98 - Step 6: Final answer
x = 80,577.72
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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.