Finding the Fourth Proportional to 127,357.98, 175,699.49 and 79,528.29
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Solution
The fourth proportional to 127,357.98, 175,699.49 and 79,528.29 is: 109,714.99
Step by Step Solution
- Step 1: Write the proportion equation
127,357.98 : 175,699.49 = 79,528.29 : x - Step 2: Convert to fraction form
127,357.98/175,699.49 = 79,528.29/x - Step 3: Cross multiply
127,357.98x = 175,699.49 × 79,528.29 - Step 4: Simplify right side
127,357.98x = 13,973,079,993.57 - Step 5: Solve for x
x = 13,973,079,993.57/127,357.98 - Step 6: Final answer
x = 109,714.99
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1.5x scale
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.