Finding the Fourth Proportional to 135,478.14, 203,343.29 and 68,968.06
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Solution
The fourth proportional to 135,478.14, 203,343.29 and 68,968.06 is: 103,516.28
Step by Step Solution
- Step 1: Write the proportion equation
135,478.14 : 203,343.29 = 68,968.06 : x - Step 2: Convert to fraction form
135,478.14/203,343.29 = 68,968.06/x - Step 3: Cross multiply
135,478.14x = 203,343.29 × 68,968.06 - Step 4: Simplify right side
135,478.14x = 14,024,192,018.69 - Step 5: Solve for x
x = 14,024,192,018.69/135,478.14 - Step 6: Final answer
x = 103,516.28
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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.