Finding the Fourth Proportional to 127,028.25, 175,296.96 and 69,668.91
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Solution
The fourth proportional to 127,028.25, 175,296.96 and 69,668.91 is: 96,141.99
Step by Step Solution
- Step 1: Write the proportion equation
127,028.25 : 175,296.96 = 69,668.91 : x - Step 2: Convert to fraction form
127,028.25/175,296.96 = 69,668.91/x - Step 3: Cross multiply
127,028.25x = 175,296.96 × 69,668.91 - Step 4: Simplify right side
127,028.25x = 12,212,748,129.51 - Step 5: Solve for x
x = 12,212,748,129.51/127,028.25 - Step 6: Final answer
x = 96,141.99
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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.