Finding the Fourth Proportional to 136,552.23, 188,447.85 and 76,122.81
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Solution
The fourth proportional to 136,552.23, 188,447.85 and 76,122.81 is: 105,052.70
Step by Step Solution
- Step 1: Write the proportion equation
136,552.23 : 188,447.85 = 76,122.81 : x - Step 2: Convert to fraction form
136,552.23/188,447.85 = 76,122.81/x - Step 3: Cross multiply
136,552.23x = 188,447.85 × 76,122.81 - Step 4: Simplify right side
136,552.23x = 14,345,179,880.46 - Step 5: Solve for x
x = 14,345,179,880.46/136,552.23 - Step 6: Final answer
x = 105,052.70
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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.