Finding the Fourth Proportional to 102,558.98, 141,531.08 and 57,236.48
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Solution
The fourth proportional to 102,558.98, 141,531.08 and 57,236.48 is: 78,986.17
Step by Step Solution
- Step 1: Write the proportion equation
102,558.98 : 141,531.08 = 57,236.48 : x - Step 2: Convert to fraction form
102,558.98/141,531.08 = 57,236.48/x - Step 3: Cross multiply
102,558.98x = 141,531.08 × 57,236.48 - Step 4: Simplify right side
102,558.98x = 8,100,740,265.23 - Step 5: Solve for x
x = 8,100,740,265.23/102,558.98 - Step 6: Final answer
x = 78,986.17
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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.