Finding the Fourth Proportional to 149,663.87, 206,538.05 and 88,412.08
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Solution
The fourth proportional to 149,663.87, 206,538.05 and 88,412.08 is: 122,009.79
Step by Step Solution
- Step 1: Write the proportion equation
149,663.87 : 206,538.05 = 88,412.08 : x - Step 2: Convert to fraction form
149,663.87/206,538.05 = 88,412.08/x - Step 3: Cross multiply
149,663.87x = 206,538.05 × 88,412.08 - Step 4: Simplify right side
149,663.87x = 18,260,458,304.33 - Step 5: Solve for x
x = 18,260,458,304.33/149,663.87 - Step 6: Final answer
x = 122,009.79
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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.