Finding the Fourth Proportional to 135,076.70, 202,491.20 and 51,908.06
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Solution
The fourth proportional to 135,076.70, 202,491.20 and 51,908.06 is: 77,814.50
Step by Step Solution
- Step 1: Write the proportion equation
135,076.70 : 202,491.20 = 51,908.06 : x - Step 2: Convert to fraction form
135,076.70/202,491.20 = 51,908.06/x - Step 3: Cross multiply
135,076.70x = 202,491.20 × 51,908.06 - Step 4: Simplify right side
135,076.70x = 10,510,925,359.07 - Step 5: Solve for x
x = 10,510,925,359.07/135,076.70 - Step 6: Final answer
x = 77,814.50
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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.