Finding the Fourth Proportional to 136,051.24, 187,754.18 and 74,796.68
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Solution
The fourth proportional to 136,051.24, 187,754.18 and 74,796.68 is: 103,221.33
Step by Step Solution
- Step 1: Write the proportion equation
136,051.24 : 187,754.18 = 74,796.68 : x - Step 2: Convert to fraction form
136,051.24/187,754.18 = 74,796.68/x - Step 3: Cross multiply
136,051.24x = 187,754.18 × 74,796.68 - Step 4: Simplify right side
136,051.24x = 14,043,389,320.12 - Step 5: Solve for x
x = 14,043,389,320.12/136,051.24 - Step 6: Final answer
x = 103,221.33
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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.