Finding the Fourth Proportional to 157,082.20, 235,623.30 and 121,652.80
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Solution
The fourth proportional to 157,082.20, 235,623.30 and 121,652.80 is: 182,479.20
Step by Step Solution
- Step 1: Write the proportion equation
157,082.20 : 235,623.30 = 121,652.80 : x - Step 2: Convert to fraction form
157,082.20/235,623.30 = 121,652.80/x - Step 3: Cross multiply
157,082.20x = 235,623.30 × 121,652.80 - Step 4: Simplify right side
157,082.20x = 28,664,234,190.24 - Step 5: Solve for x
x = 28,664,234,190.24/157,082.20 - Step 6: Final answer
x = 182,479.20
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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.