Finding the Fourth Proportional to 136,305.99, 188,107.77 and 75,872.79
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Solution
The fourth proportional to 136,305.99, 188,107.77 and 75,872.79 is: 104,707.51
Step by Step Solution
- Step 1: Write the proportion equation
136,305.99 : 188,107.77 = 75,872.79 : x - Step 2: Convert to fraction form
136,305.99/188,107.77 = 75,872.79/x - Step 3: Cross multiply
136,305.99x = 188,107.77 × 75,872.79 - Step 4: Simplify right side
136,305.99x = 14,272,261,330.58 - Step 5: Solve for x
x = 14,272,261,330.58/136,305.99 - Step 6: Final answer
x = 104,707.51
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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.