Finding the Fourth Proportional to 136,086.84, 203,693.50 and 72,748.58
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Solution
The fourth proportional to 136,086.84, 203,693.50 and 72,748.58 is: 108,889.39
Step by Step Solution
- Step 1: Write the proportion equation
136,086.84 : 203,693.50 = 72,748.58 : x - Step 2: Convert to fraction form
136,086.84/203,693.50 = 72,748.58/x - Step 3: Cross multiply
136,086.84x = 203,693.50 × 72,748.58 - Step 4: Simplify right side
136,086.84x = 14,818,412,880.23 - Step 5: Solve for x
x = 14,818,412,880.23/136,086.84 - Step 6: Final answer
x = 108,889.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.