Finding the Fourth Proportional to 136,641.09, 203,603.24 and 121,735.47
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Solution
The fourth proportional to 136,641.09, 203,603.24 and 121,735.47 is: 181,392.99
Step by Step Solution
- Step 1: Write the proportion equation
136,641.09 : 203,603.24 = 121,735.47 : x - Step 2: Convert to fraction form
136,641.09/203,603.24 = 121,735.47/x - Step 3: Cross multiply
136,641.09x = 203,603.24 × 121,735.47 - Step 4: Simplify right side
136,641.09x = 24,785,736,114.92 - Step 5: Solve for x
x = 24,785,736,114.92/136,641.09 - Step 6: Final answer
x = 181,392.99
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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.