Finding the Fourth Proportional to 149,481.18, 206,281.35 and 81,501.12
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Solution
The fourth proportional to 149,481.18, 206,281.35 and 81,501.12 is: 112,470.09
Step by Step Solution
- Step 1: Write the proportion equation
149,481.18 : 206,281.35 = 81,501.12 : x - Step 2: Convert to fraction form
149,481.18/206,281.35 = 81,501.12/x - Step 3: Cross multiply
149,481.18x = 206,281.35 × 81,501.12 - Step 4: Simplify right side
149,481.18x = 16,812,161,060.11 - Step 5: Solve for x
x = 16,812,161,060.11/149,481.18 - Step 6: Final answer
x = 112,470.09
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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.