Finding the Fourth Proportional to 151,558.70, 209,151.99 and 83,578.23
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Solution
The fourth proportional to 151,558.70, 209,151.99 and 83,578.23 is: 115,338.50
Step by Step Solution
- Step 1: Write the proportion equation
151,558.70 : 209,151.99 = 83,578.23 : x - Step 2: Convert to fraction form
151,558.70/209,151.99 = 83,578.23/x - Step 3: Cross multiply
151,558.70x = 209,151.99 × 83,578.23 - Step 4: Simplify right side
151,558.70x = 17,480,553,125.18 - Step 5: Solve for x
x = 17,480,553,125.18/151,558.70 - Step 6: Final answer
x = 115,338.50
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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.