Finding the Fourth Proportional to 136,884.84, 188,887.74 and 76,450.68
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Solution
The fourth proportional to 136,884.84, 188,887.74 and 76,450.68 is: 105,494.49
Step by Step Solution
- Step 1: Write the proportion equation
136,884.84 : 188,887.74 = 76,450.68 : x - Step 2: Convert to fraction form
136,884.84/188,887.74 = 76,450.68/x - Step 3: Cross multiply
136,884.84x = 188,887.74 × 76,450.68 - Step 4: Simplify right side
136,884.84x = 14,440,596,166.66 - Step 5: Solve for x
x = 14,440,596,166.66/136,884.84 - Step 6: Final answer
x = 105,494.49
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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.