Finding the Fourth Proportional to 129,654.57, 178,804.40 and 88,877.96
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Solution
The fourth proportional to 129,654.57, 178,804.40 and 88,877.96 is: 122,570.07
Step by Step Solution
- Step 1: Write the proportion equation
129,654.57 : 178,804.40 = 88,877.96 : x - Step 2: Convert to fraction form
129,654.57/178,804.40 = 88,877.96/x - Step 3: Cross multiply
129,654.57x = 178,804.40 × 88,877.96 - Step 4: Simplify right side
129,654.57x = 15,891,769,643.13 - Step 5: Solve for x
x = 15,891,769,643.13/129,654.57 - Step 6: Final answer
x = 122,570.07
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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.