Finding the Fourth Proportional to 136,643.10, 203,606.22 and 121,737.48
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Solution
The fourth proportional to 136,643.10, 203,606.22 and 121,737.48 is: 181,395.97
Step by Step Solution
- Step 1: Write the proportion equation
136,643.10 : 203,606.22 = 121,737.48 : x - Step 2: Convert to fraction form
136,643.10/203,606.22 = 121,737.48/x - Step 3: Cross multiply
136,643.10x = 203,606.22 × 121,737.48 - Step 4: Simplify right side
136,643.10x = 24,786,508,135.13 - Step 5: Solve for x
x = 24,786,508,135.13/136,643.10 - Step 6: Final answer
x = 181,395.97
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.