Finding the Fourth Proportional to 128,241.24, 192,361.80 and 34,746.99
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Solution
The fourth proportional to 128,241.24, 192,361.80 and 34,746.99 is: 52,120.47
Step by Step Solution
- Step 1: Write the proportion equation
128,241.24 : 192,361.80 = 34,746.99 : x - Step 2: Convert to fraction form
128,241.24/192,361.80 = 34,746.99/x - Step 3: Cross multiply
128,241.24x = 192,361.80 × 34,746.99 - Step 4: Simplify right side
128,241.24x = 6,683,993,540.98 - Step 5: Solve for x
x = 6,683,993,540.98/128,241.24 - Step 6: Final answer
x = 52,120.47
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1.5x scale
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.