Finding the Fourth Proportional to 156,581.88, 216,082.74 and 84,961.92
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Solution
The fourth proportional to 156,581.88, 216,082.74 and 84,961.92 is: 117,247.31
Step by Step Solution
- Step 1: Write the proportion equation
156,581.88 : 216,082.74 = 84,961.92 : x - Step 2: Convert to fraction form
156,581.88/216,082.74 = 84,961.92/x - Step 3: Cross multiply
156,581.88x = 216,082.74 × 84,961.92 - Step 4: Simplify right side
156,581.88x = 18,358,804,469.26 - Step 5: Solve for x
x = 18,358,804,469.26/156,581.88 - Step 6: Final answer
x = 117,247.31
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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.