Finding the Fourth Proportional to 140,688.08, 194,174.09 and 83,359.68
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Solution
The fourth proportional to 140,688.08, 194,174.09 and 83,359.68 is: 115,050.90
Step by Step Solution
- Step 1: Write the proportion equation
140,688.08 : 194,174.09 = 83,359.68 : x - Step 2: Convert to fraction form
140,688.08/194,174.09 = 83,359.68/x - Step 3: Cross multiply
140,688.08x = 194,174.09 × 83,359.68 - Step 4: Simplify right side
140,688.08x = 16,186,289,589.89 - Step 5: Solve for x
x = 16,186,289,589.89/140,688.08 - Step 6: Final answer
x = 115,050.90
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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.