Finding the Fourth Proportional to 188,679.88, 260,497.74 and 117,135.82
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Solution
The fourth proportional to 188,679.88, 260,497.74 and 117,135.82 is: 161,721.62
Step by Step Solution
- Step 1: Write the proportion equation
188,679.88 : 260,497.74 = 117,135.82 : x - Step 2: Convert to fraction form
188,679.88/260,497.74 = 117,135.82/x - Step 3: Cross multiply
188,679.88x = 260,497.74 × 117,135.82 - Step 4: Simplify right side
188,679.88x = 30,513,616,383.05 - Step 5: Solve for x
x = 30,513,616,383.05/188,679.88 - Step 6: Final answer
x = 161,721.62
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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.