Finding the Fourth Proportional to 136,218.80, 204,377.40 and 69,690.26
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Solution
The fourth proportional to 136,218.80, 204,377.40 and 69,690.26 is: 104,560.56
Step by Step Solution
- Step 1: Write the proportion equation
136,218.80 : 204,377.40 = 69,690.26 : x - Step 2: Convert to fraction form
136,218.80/204,377.40 = 69,690.26/x - Step 3: Cross multiply
136,218.80x = 204,377.40 × 69,690.26 - Step 4: Simplify right side
136,218.80x = 14,243,113,122.24 - Step 5: Solve for x
x = 14,243,113,122.24/136,218.80 - Step 6: Final answer
x = 104,560.56
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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.