Finding the Fourth Proportional to 128,952.81, 193,406.94 and 34,183.62
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Solution
The fourth proportional to 128,952.81, 193,406.94 and 34,183.62 is: 51,269.53
Step by Step Solution
- Step 1: Write the proportion equation
128,952.81 : 193,406.94 = 34,183.62 : x - Step 2: Convert to fraction form
128,952.81/193,406.94 = 34,183.62/x - Step 3: Cross multiply
128,952.81x = 193,406.94 × 34,183.62 - Step 4: Simplify right side
128,952.81x = 6,611,349,342.32 - Step 5: Solve for x
x = 6,611,349,342.32/128,952.81 - Step 6: Final answer
x = 51,269.53
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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.