Finding the Fourth Proportional to 135,960.39, 203,969.79 and 57,029.13
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Solution
The fourth proportional to 135,960.39, 203,969.79 and 57,029.13 is: 85,555.95
Step by Step Solution
- Step 1: Write the proportion equation
135,960.39 : 203,969.79 = 57,029.13 : x - Step 2: Convert to fraction form
135,960.39/203,969.79 = 57,029.13/x - Step 3: Cross multiply
135,960.39x = 203,969.79 × 57,029.13 - Step 4: Simplify right side
135,960.39x = 11,632,219,669.98 - Step 5: Solve for x
x = 11,632,219,669.98/135,960.39 - Step 6: Final answer
x = 85,555.95
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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.