Finding the Fourth Proportional to 140,330.99, 193,861.67 and 121,435.31
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Solution
The fourth proportional to 140,330.99, 193,861.67 and 121,435.31 is: 167,758.04
Step by Step Solution
- Step 1: Write the proportion equation
140,330.99 : 193,861.67 = 121,435.31 : x - Step 2: Convert to fraction form
140,330.99/193,861.67 = 121,435.31/x - Step 3: Cross multiply
140,330.99x = 193,861.67 × 121,435.31 - Step 4: Simplify right side
140,330.99x = 23,541,650,417.08 - Step 5: Solve for x
x = 23,541,650,417.08/140,330.99 - Step 6: Final answer
x = 167,758.04
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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.