Finding the Fourth Proportional to 136,876.14, 205,314.21 and 51,503.06
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Solution
The fourth proportional to 136,876.14, 205,314.21 and 51,503.06 is: 77,254.58
Step by Step Solution
- Step 1: Write the proportion equation
136,876.14 : 205,314.21 = 51,503.06 : x - Step 2: Convert to fraction form
136,876.14/205,314.21 = 51,503.06/x - Step 3: Cross multiply
136,876.14x = 205,314.21 × 51,503.06 - Step 4: Simplify right side
136,876.14x = 10,574,309,049.91 - Step 5: Solve for x
x = 10,574,309,049.91/136,876.14 - Step 6: Final answer
x = 77,254.58
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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.