Finding the Fourth Proportional to 149,562.55, 206,396.97 and 81,580.99
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Solution
The fourth proportional to 149,562.55, 206,396.97 and 81,580.99 is: 112,582.12
Step by Step Solution
- Step 1: Write the proportion equation
149,562.55 : 206,396.97 = 81,580.99 : x - Step 2: Convert to fraction form
149,562.55/206,396.97 = 81,580.99/x - Step 3: Cross multiply
149,562.55x = 206,396.97 × 81,580.99 - Step 4: Simplify right side
149,562.55x = 16,838,069,145.60 - Step 5: Solve for x
x = 16,838,069,145.60/149,562.55 - Step 6: Final answer
x = 112,582.12
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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.