Finding the Fourth Proportional to 153,992.73, 212,609.98 and 137,832.02
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Solution
The fourth proportional to 153,992.73, 212,609.98 and 137,832.02 is: 190,297.70
Step by Step Solution
- Step 1: Write the proportion equation
153,992.73 : 212,609.98 = 137,832.02 : x - Step 2: Convert to fraction form
153,992.73/212,609.98 = 137,832.02/x - Step 3: Cross multiply
153,992.73x = 212,609.98 × 137,832.02 - Step 4: Simplify right side
153,992.73x = 29,304,463,015.56 - Step 5: Solve for x
x = 29,304,463,015.56/153,992.73 - Step 6: Final answer
x = 190,297.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.