Finding the Fourth Proportional to 136,770.68, 188,742.84 and 76,337.84
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Solution
The fourth proportional to 136,770.68, 188,742.84 and 76,337.84 is: 105,345.83
Step by Step Solution
- Step 1: Write the proportion equation
136,770.68 : 188,742.84 = 76,337.84 : x - Step 2: Convert to fraction form
136,770.68/188,742.84 = 76,337.84/x - Step 3: Cross multiply
136,770.68x = 188,742.84 × 76,337.84 - Step 4: Simplify right side
136,770.68x = 14,408,220,721.07 - Step 5: Solve for x
x = 14,408,220,721.07/136,770.68 - Step 6: Final answer
x = 105,345.83
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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.