Finding the Fourth Proportional to 99,408.60, 149,113.08 and 29,287.08
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Solution
The fourth proportional to 99,408.60, 149,113.08 and 29,287.08 is: 43,930.67
Step by Step Solution
- Step 1: Write the proportion equation
99,408.60 : 149,113.08 = 29,287.08 : x - Step 2: Convert to fraction form
99,408.60/149,113.08 = 29,287.08/x - Step 3: Cross multiply
99,408.60x = 149,113.08 × 29,287.08 - Step 4: Simplify right side
99,408.60x = 4,367,086,703.01 - Step 5: Solve for x
x = 4,367,086,703.01/99,408.60 - Step 6: Final answer
x = 43,930.67
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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.