Finding the Fourth Proportional to 127,187.70, 190,867.95 and 71,027.70
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Solution
The fourth proportional to 127,187.70, 190,867.95 and 71,027.70 is: 106,589.80
Step by Step Solution
- Step 1: Write the proportion equation
127,187.70 : 190,867.95 = 71,027.70 : x - Step 2: Convert to fraction form
127,187.70/190,867.95 = 71,027.70/x - Step 3: Cross multiply
127,187.70x = 190,867.95 × 71,027.70 - Step 4: Simplify right side
127,187.70x = 13,556,911,492.22 - Step 5: Solve for x
x = 13,556,911,492.22/127,187.70 - Step 6: Final answer
x = 106,589.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.