Finding the Fourth Proportional to 99,675.22, 149,512.82 and 68,415.70
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Solution
The fourth proportional to 99,675.22, 149,512.82 and 68,415.70 is: 102,623.54
Step by Step Solution
- Step 1: Write the proportion equation
99,675.22 : 149,512.82 = 68,415.70 : x - Step 2: Convert to fraction form
99,675.22/149,512.82 = 68,415.70/x - Step 3: Cross multiply
99,675.22x = 149,512.82 × 68,415.70 - Step 4: Simplify right side
99,675.22x = 10,229,024,239.27 - Step 5: Solve for x
x = 10,229,024,239.27/99,675.22 - Step 6: Final answer
x = 102,623.54
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1.5x scale
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.