Finding the Fourth Proportional to 158,361.14, 218,537.73 and 86,741.06
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Solution
The fourth proportional to 158,361.14, 218,537.73 and 86,741.06 is: 119,702.31
Step by Step Solution
- Step 1: Write the proportion equation
158,361.14 : 218,537.73 = 86,741.06 : x - Step 2: Convert to fraction form
158,361.14/218,537.73 = 86,741.06/x - Step 3: Cross multiply
158,361.14x = 218,537.73 × 86,741.06 - Step 4: Simplify right side
158,361.14x = 18,956,194,350.19 - Step 5: Solve for x
x = 18,956,194,350.19/158,361.14 - Step 6: Final answer
x = 119,702.31
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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.