Finding the Fourth Proportional to 135,378.75, 203,141.94 and 60,495.87
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Solution
The fourth proportional to 135,378.75, 203,141.94 and 60,495.87 is: 90,776.79
Step by Step Solution
- Step 1: Write the proportion equation
135,378.75 : 203,141.94 = 60,495.87 : x - Step 2: Convert to fraction form
135,378.75/203,141.94 = 60,495.87/x - Step 3: Cross multiply
135,378.75x = 203,141.94 × 60,495.87 - Step 4: Simplify right side
135,378.75x = 12,289,248,393.79 - Step 5: Solve for x
x = 12,289,248,393.79/135,378.75 - Step 6: Final answer
x = 90,776.79
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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.