Finding the Fourth Proportional to 161,377.64, 241,902.99 and 81,173.26
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Solution
The fourth proportional to 161,377.64, 241,902.99 and 81,173.26 is: 121,677.67
Step by Step Solution
- Step 1: Write the proportion equation
161,377.64 : 241,902.99 = 81,173.26 : x - Step 2: Convert to fraction form
161,377.64/241,902.99 = 81,173.26/x - Step 3: Cross multiply
161,377.64x = 241,902.99 × 81,173.26 - Step 4: Simplify right side
161,377.64x = 19,636,054,604.43 - Step 5: Solve for x
x = 19,636,054,604.43/161,377.64 - Step 6: Final answer
x = 121,677.67
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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.