Finding the Fourth Proportional to 143,178.68, 214,673.24 and 68,310.38
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Solution
The fourth proportional to 143,178.68, 214,673.24 and 68,310.38 is: 102,420.35
Step by Step Solution
- Step 1: Write the proportion equation
143,178.68 : 214,673.24 = 68,310.38 : x - Step 2: Convert to fraction form
143,178.68/214,673.24 = 68,310.38/x - Step 3: Cross multiply
143,178.68x = 214,673.24 × 68,310.38 - Step 4: Simplify right side
143,178.68x = 14,664,410,600.23 - Step 5: Solve for x
x = 14,664,410,600.23/143,178.68 - Step 6: Final answer
x = 102,420.35
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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.