Finding the Fourth Proportional to 149,557.12, 206,375.52 and 85,888.96
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Solution
The fourth proportional to 149,557.12, 206,375.52 and 85,888.96 is: 118,519.12
Step by Step Solution
- Step 1: Write the proportion equation
149,557.12 : 206,375.52 = 85,888.96 : x - Step 2: Convert to fraction form
149,557.12/206,375.52 = 85,888.96/x - Step 3: Cross multiply
149,557.12x = 206,375.52 × 85,888.96 - Step 4: Simplify right side
149,557.12x = 17,725,378,782.26 - Step 5: Solve for x
x = 17,725,378,782.26/149,557.12 - Step 6: Final answer
x = 118,519.12
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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.