Finding the Fourth Proportional to 149,363.23, 206,118.84 and 81,380.99
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Solution
The fourth proportional to 149,363.23, 206,118.84 and 81,380.99 is: 112,304.45
Step by Step Solution
- Step 1: Write the proportion equation
149,363.23 : 206,118.84 = 81,380.99 : x - Step 2: Convert to fraction form
149,363.23/206,118.84 = 81,380.99/x - Step 3: Cross multiply
149,363.23x = 206,118.84 × 81,380.99 - Step 4: Simplify right side
149,363.23x = 16,774,155,256.85 - Step 5: Solve for x
x = 16,774,155,256.85/149,363.23 - Step 6: Final answer
x = 112,304.45
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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.