Finding the Fourth Proportional to 121,750.20, 182,625.30 and 103,087.80
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Solution
The fourth proportional to 121,750.20, 182,625.30 and 103,087.80 is: 154,631.70
Step by Step Solution
- Step 1: Write the proportion equation
121,750.20 : 182,625.30 = 103,087.80 : x - Step 2: Convert to fraction form
121,750.20/182,625.30 = 103,087.80/x - Step 3: Cross multiply
121,750.20x = 182,625.30 × 103,087.80 - Step 4: Simplify right side
121,750.20x = 18,826,440,401.34 - Step 5: Solve for x
x = 18,826,440,401.34/121,750.20 - Step 6: Final answer
x = 154,631.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.