Finding the Fourth Proportional to 99,342.44, 149,013.60 and 29,221.74
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Solution
The fourth proportional to 99,342.44, 149,013.60 and 29,221.74 is: 43,832.59
Step by Step Solution
- Step 1: Write the proportion equation
99,342.44 : 149,013.60 = 29,221.74 : x - Step 2: Convert to fraction form
99,342.44/149,013.60 = 29,221.74/x - Step 3: Cross multiply
99,342.44x = 149,013.60 × 29,221.74 - Step 4: Simplify right side
99,342.44x = 4,354,436,675.66 - Step 5: Solve for x
x = 4,354,436,675.66/99,342.44 - Step 6: Final answer
x = 43,832.59
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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.