Finding the Fourth Proportional to 143,614.14, 198,157.44 and 83,181.12
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Solution
The fourth proportional to 143,614.14, 198,157.44 and 83,181.12 is: 114,772.53
Step by Step Solution
- Step 1: Write the proportion equation
143,614.14 : 198,157.44 = 83,181.12 : x - Step 2: Convert to fraction form
143,614.14/198,157.44 = 83,181.12/x - Step 3: Cross multiply
143,614.14x = 198,157.44 × 83,181.12 - Step 4: Simplify right side
143,614.14x = 16,482,957,795.53 - Step 5: Solve for x
x = 16,482,957,795.53/143,614.14 - Step 6: Final answer
x = 114,772.53
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1.5x scale
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.