Finding the Fourth Proportional to 135,772.70, 203,593.28 and 79,631.19
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Solution
The fourth proportional to 135,772.70, 203,593.28 and 79,631.19 is: 119,408.21
Step by Step Solution
- Step 1: Write the proportion equation
135,772.70 : 203,593.28 = 79,631.19 : x - Step 2: Convert to fraction form
135,772.70/203,593.28 = 79,631.19/x - Step 3: Cross multiply
135,772.70x = 203,593.28 × 79,631.19 - Step 4: Simplify right side
135,772.70x = 16,212,374,764.25 - Step 5: Solve for x
x = 16,212,374,764.25/135,772.70 - Step 6: Final answer
x = 119,408.21
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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.