Finding the Fourth Proportional to 137,160.38, 205,748.60 and 52,920.99
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Solution
The fourth proportional to 137,160.38, 205,748.60 and 52,920.99 is: 79,384.58
Step by Step Solution
- Step 1: Write the proportion equation
137,160.38 : 205,748.60 = 52,920.99 : x - Step 2: Convert to fraction form
137,160.38/205,748.60 = 52,920.99/x - Step 3: Cross multiply
137,160.38x = 205,748.60 × 52,920.99 - Step 4: Simplify right side
137,160.38x = 10,888,419,338.51 - Step 5: Solve for x
x = 10,888,419,338.51/137,160.38 - Step 6: Final answer
x = 79,384.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.