Finding the Fourth Proportional to 136,291.80, 204,437.70 and 127,543.80
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Solution
The fourth proportional to 136,291.80, 204,437.70 and 127,543.80 is: 191,315.70
Step by Step Solution
- Step 1: Write the proportion equation
136,291.80 : 204,437.70 = 127,543.80 : x - Step 2: Convert to fraction form
136,291.80/204,437.70 = 127,543.80/x - Step 3: Cross multiply
136,291.80x = 204,437.70 × 127,543.80 - Step 4: Simplify right side
136,291.80x = 26,074,761,121.26 - Step 5: Solve for x
x = 26,074,761,121.26/136,291.80 - Step 6: Final answer
x = 191,315.70
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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.