Finding the Fourth Proportional to 133,152.19, 183,755.49 and 76,563.56
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Solution
The fourth proportional to 133,152.19, 183,755.49 and 76,563.56 is: 105,660.86
Step by Step Solution
- Step 1: Write the proportion equation
133,152.19 : 183,755.49 = 76,563.56 : x - Step 2: Convert to fraction form
133,152.19/183,755.49 = 76,563.56/x - Step 3: Cross multiply
133,152.19x = 183,755.49 × 76,563.56 - Step 4: Simplify right side
133,152.19x = 14,068,974,656.22 - Step 5: Solve for x
x = 14,068,974,656.22/133,152.19 - Step 6: Final answer
x = 105,660.86
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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.