Finding the Fourth Proportional to 102,697.07, 141,720.35 and 57,375.68
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Solution
The fourth proportional to 102,697.07, 141,720.35 and 57,375.68 is: 79,177.53
Step by Step Solution
- Step 1: Write the proportion equation
102,697.07 : 141,720.35 = 57,375.68 : x - Step 2: Convert to fraction form
102,697.07/141,720.35 = 57,375.68/x - Step 3: Cross multiply
102,697.07x = 141,720.35 × 57,375.68 - Step 4: Simplify right side
102,697.07x = 8,131,300,455.61 - Step 5: Solve for x
x = 8,131,300,455.61/102,697.07 - Step 6: Final answer
x = 79,177.53
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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.