Finding the Fourth Proportional to 149,427.68, 206,208.88 and 81,444.65
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Solution
The fourth proportional to 149,427.68, 206,208.88 and 81,444.65 is: 112,392.90
Step by Step Solution
- Step 1: Write the proportion equation
149,427.68 : 206,208.88 = 81,444.65 : x - Step 2: Convert to fraction form
149,427.68/206,208.88 = 81,444.65/x - Step 3: Cross multiply
149,427.68x = 206,208.88 × 81,444.65 - Step 4: Simplify right side
149,427.68x = 16,794,609,651.27 - Step 5: Solve for x
x = 16,794,609,651.27/149,427.68 - Step 6: Final answer
x = 112,392.90
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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.