Finding the Fourth Proportional to 143,614.97, 198,158.60 and 83,181.99
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Solution
The fourth proportional to 143,614.97, 198,158.60 and 83,181.99 is: 114,773.74
Step by Step Solution
- Step 1: Write the proportion equation
143,614.97 : 198,158.60 = 83,181.99 : x - Step 2: Convert to fraction form
143,614.97/198,158.60 = 83,181.99/x - Step 3: Cross multiply
143,614.97x = 198,158.60 × 83,181.99 - Step 4: Simplify right side
143,614.97x = 16,483,226,267.70 - Step 5: Solve for x
x = 16,483,226,267.70/143,614.97 - Step 6: Final answer
x = 114,773.74
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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.