Finding the Fourth Proportional to 143,715.06, 198,328.84 and 82,471.23
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Solution
The fourth proportional to 143,715.06, 198,328.84 and 82,471.23 is: 113,811.48
Step by Step Solution
- Step 1: Write the proportion equation
143,715.06 : 198,328.84 = 82,471.23 : x - Step 2: Convert to fraction form
143,715.06/198,328.84 = 82,471.23/x - Step 3: Cross multiply
143,715.06x = 198,328.84 × 82,471.23 - Step 4: Simplify right side
143,715.06x = 16,356,423,173.10 - Step 5: Solve for x
x = 16,356,423,173.10/143,715.06 - Step 6: Final answer
x = 113,811.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.