Finding the Fourth Proportional to 136,749.80, 205,124.70 and 133,677.80
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Solution
The fourth proportional to 136,749.80, 205,124.70 and 133,677.80 is: 200,516.70
Step by Step Solution
- Step 1: Write the proportion equation
136,749.80 : 205,124.70 = 133,677.80 : x - Step 2: Convert to fraction form
136,749.80/205,124.70 = 133,677.80/x - Step 3: Cross multiply
136,749.80x = 205,124.70 × 133,677.80 - Step 4: Simplify right side
136,749.80x = 27,420,618,621.66 - Step 5: Solve for x
x = 27,420,618,621.66/136,749.80 - Step 6: Final answer
x = 200,516.70
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1.5x scale
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.