Finding the Fourth Proportional to 99,938.44, 149,949.18 and 43,749.63
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Solution
The fourth proportional to 99,938.44, 149,949.18 and 43,749.63 is: 65,642.61
Step by Step Solution
- Step 1: Write the proportion equation
99,938.44 : 149,949.18 = 43,749.63 : x - Step 2: Convert to fraction form
99,938.44/149,949.18 = 43,749.63/x - Step 3: Cross multiply
99,938.44x = 149,949.18 × 43,749.63 - Step 4: Simplify right side
99,938.44x = 6,560,220,175.31 - Step 5: Solve for x
x = 6,560,220,175.31/99,938.44 - Step 6: Final answer
x = 65,642.61
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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.