Finding the Fourth Proportional to 135,945.80, 203,918.70 and 122,167.70
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Solution
The fourth proportional to 135,945.80, 203,918.70 and 122,167.70 is: 183,251.55
Step by Step Solution
- Step 1: Write the proportion equation
135,945.80 : 203,918.70 = 122,167.70 : x - Step 2: Convert to fraction form
135,945.80/203,918.70 = 122,167.70/x - Step 3: Cross multiply
135,945.80x = 203,918.70 × 122,167.70 - Step 4: Simplify right side
135,945.80x = 24,912,278,565.99 - Step 5: Solve for x
x = 24,912,278,565.99/135,945.80 - Step 6: Final answer
x = 183,251.55
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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.