Finding the Fourth Proportional to 136,566.99, 188,463.24 and 76,141.44
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Solution
The fourth proportional to 136,566.99, 188,463.24 and 76,141.44 is: 105,075.63
Step by Step Solution
- Step 1: Write the proportion equation
136,566.99 : 188,463.24 = 76,141.44 : x - Step 2: Convert to fraction form
136,566.99/188,463.24 = 76,141.44/x - Step 3: Cross multiply
136,566.99x = 188,463.24 × 76,141.44 - Step 4: Simplify right side
136,566.99x = 14,349,862,480.67 - Step 5: Solve for x
x = 14,349,862,480.67/136,566.99 - Step 6: Final answer
x = 105,075.63
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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.