Finding the Fourth Proportional to 133,436.70, 198,811.80 and 131,512.14
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Solution
The fourth proportional to 133,436.70, 198,811.80 and 131,512.14 is: 195,944.33
Step by Step Solution
- Step 1: Write the proportion equation
133,436.70 : 198,811.80 = 131,512.14 : x - Step 2: Convert to fraction form
133,436.70/198,811.80 = 131,512.14/x - Step 3: Cross multiply
133,436.70x = 198,811.80 × 131,512.14 - Step 4: Simplify right side
133,436.70x = 26,146,165,275.25 - Step 5: Solve for x
x = 26,146,165,275.25/133,436.70 - Step 6: Final answer
x = 195,944.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.