Finding the Fourth Proportional to 136,176.82, 188,058.75 and 112,215.19
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Solution
The fourth proportional to 136,176.82, 188,058.75 and 112,215.19 is: 154,967.99
Step by Step Solution
- Step 1: Write the proportion equation
136,176.82 : 188,058.75 = 112,215.19 : x - Step 2: Convert to fraction form
136,176.82/188,058.75 = 112,215.19/x - Step 3: Cross multiply
136,176.82x = 188,058.75 × 112,215.19 - Step 4: Simplify right side
136,176.82x = 21,103,048,362.41 - Step 5: Solve for x
x = 21,103,048,362.41/136,176.82 - Step 6: Final answer
x = 154,967.99
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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.