Finding the Fourth Proportional to 168,229.70, 252,114.15 and 137,125.70
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Solution
The fourth proportional to 168,229.70, 252,114.15 and 137,125.70 is: 205,500.75
Step by Step Solution
- Step 1: Write the proportion equation
168,229.70 : 252,114.15 = 137,125.70 : x - Step 2: Convert to fraction form
168,229.70/252,114.15 = 137,125.70/x - Step 3: Cross multiply
168,229.70x = 252,114.15 × 137,125.70 - Step 4: Simplify right side
168,229.70x = 34,571,329,298.66 - Step 5: Solve for x
x = 34,571,329,298.66/168,229.70 - Step 6: Final answer
x = 205,500.75
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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.