Finding the Fourth Proportional to 121,536.44, 167,720.30 and 67,088.63
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Solution
The fourth proportional to 121,536.44, 167,720.30 and 67,088.63 is: 92,582.30
Step by Step Solution
- Step 1: Write the proportion equation
121,536.44 : 167,720.30 = 67,088.63 : x - Step 2: Convert to fraction form
121,536.44/167,720.30 = 67,088.63/x - Step 3: Cross multiply
121,536.44x = 167,720.30 × 67,088.63 - Step 4: Simplify right side
121,536.44x = 11,252,123,976.14 - Step 5: Solve for x
x = 11,252,123,976.14/121,536.44 - Step 6: Final answer
x = 92,582.30
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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.