Finding the Fourth Proportional to 133,715.36, 184,420.88 and 113,638.68
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Solution
The fourth proportional to 133,715.36, 184,420.88 and 113,638.68 is: 156,731.02
Step by Step Solution
- Step 1: Write the proportion equation
133,715.36 : 184,420.88 = 113,638.68 : x - Step 2: Convert to fraction form
133,715.36/184,420.88 = 113,638.68/x - Step 3: Cross multiply
133,715.36x = 184,420.88 × 113,638.68 - Step 4: Simplify right side
133,715.36x = 20,957,345,367.64 - Step 5: Solve for x
x = 20,957,345,367.64/133,715.36 - Step 6: Final answer
x = 156,731.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.