Finding the Fourth Proportional to 149,562.66, 206,397.12 and 81,581.09
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Solution
The fourth proportional to 149,562.66, 206,397.12 and 81,581.09 is: 112,582.26
Step by Step Solution
- Step 1: Write the proportion equation
149,562.66 : 206,397.12 = 81,581.09 : x - Step 2: Convert to fraction form
149,562.66/206,397.12 = 81,581.09/x - Step 3: Cross multiply
149,562.66x = 206,397.12 × 81,581.09 - Step 4: Simplify right side
149,562.66x = 16,838,102,022.46 - Step 5: Solve for x
x = 16,838,102,022.46/149,562.66 - Step 6: Final answer
x = 112,582.26
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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.