Finding the Fourth Proportional to 188,691.75, 260,394.62 and 103,806.99
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Solution
The fourth proportional to 188,691.75, 260,394.62 and 103,806.99 is: 143,253.65
Step by Step Solution
- Step 1: Write the proportion equation
188,691.75 : 260,394.62 = 103,806.99 : x - Step 2: Convert to fraction form
188,691.75/260,394.62 = 103,806.99/x - Step 3: Cross multiply
188,691.75x = 260,394.62 × 103,806.99 - Step 4: Simplify right side
188,691.75x = 27,030,781,195.36 - Step 5: Solve for x
x = 27,030,781,195.36/188,691.75 - Step 6: Final answer
x = 143,253.65
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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.