Finding the Fourth Proportional to 122,184.28, 168,613.12 and 68,471.56
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Solution
The fourth proportional to 122,184.28, 168,613.12 and 68,471.56 is: 94,490.09
Step by Step Solution
- Step 1: Write the proportion equation
122,184.28 : 168,613.12 = 68,471.56 : x - Step 2: Convert to fraction form
122,184.28/168,613.12 = 68,471.56/x - Step 3: Cross multiply
122,184.28x = 168,613.12 × 68,471.56 - Step 4: Simplify right side
122,184.28x = 11,545,203,362.87 - Step 5: Solve for x
x = 11,545,203,362.87/122,184.28 - Step 6: Final answer
x = 94,490.09
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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.