Finding the Fourth Proportional to 149,299.93, 206,032.84 and 81,316.69
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Solution
The fourth proportional to 149,299.93, 206,032.84 and 81,316.69 is: 112,216.45
Step by Step Solution
- Step 1: Write the proportion equation
149,299.93 : 206,032.84 = 81,316.69 : x - Step 2: Convert to fraction form
149,299.93/206,032.84 = 81,316.69/x - Step 3: Cross multiply
149,299.93x = 206,032.84 × 81,316.69 - Step 4: Simplify right side
149,299.93x = 16,753,907,861.73 - Step 5: Solve for x
x = 16,753,907,861.73/149,299.93 - Step 6: Final answer
x = 112,216.45
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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.