Finding the Fourth Proportional to 128,241.79, 192,365.97 and 60,758.03
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Solution
The fourth proportional to 128,241.79, 192,365.97 and 60,758.03 is: 91,138.59
Step by Step Solution
- Step 1: Write the proportion equation
128,241.79 : 192,365.97 = 60,758.03 : x - Step 2: Convert to fraction form
128,241.79/192,365.97 = 60,758.03/x - Step 3: Cross multiply
128,241.79x = 192,365.97 × 60,758.03 - Step 4: Simplify right side
128,241.79x = 11,687,776,414.41 - Step 5: Solve for x
x = 11,687,776,414.41/128,241.79 - Step 6: Final answer
x = 91,138.59
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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.