Finding the Fourth Proportional to 99,906.08, 149,729.95 and 74,748.75
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Solution
The fourth proportional to 99,906.08, 149,729.95 and 74,748.75 is: 112,026.48
Step by Step Solution
- Step 1: Write the proportion equation
99,906.08 : 149,729.95 = 74,748.75 : x - Step 2: Convert to fraction form
99,906.08/149,729.95 = 74,748.75/x - Step 3: Cross multiply
99,906.08x = 149,729.95 × 74,748.75 - Step 4: Simplify right side
99,906.08x = 11,192,126,600.06 - Step 5: Solve for x
x = 11,192,126,600.06/99,906.08 - Step 6: Final answer
x = 112,026.48
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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.