Finding the Fourth Proportional to 151,516.90, 209,046.99 and 87,841.99
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Solution
The fourth proportional to 151,516.90, 209,046.99 and 87,841.99 is: 121,195.09
Step by Step Solution
- Step 1: Write the proportion equation
151,516.90 : 209,046.99 = 87,841.99 : x - Step 2: Convert to fraction form
151,516.90/209,046.99 = 87,841.99/x - Step 3: Cross multiply
151,516.90x = 209,046.99 × 87,841.99 - Step 4: Simplify right side
151,516.90x = 18,363,103,605.11 - Step 5: Solve for x
x = 18,363,103,605.11/151,516.90 - Step 6: Final answer
x = 121,195.09
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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.