Finding the Fourth Proportional to 136,053.20, 204,079.80 and 121,278.80
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Solution
The fourth proportional to 136,053.20, 204,079.80 and 121,278.80 is: 181,918.20
Step by Step Solution
- Step 1: Write the proportion equation
136,053.20 : 204,079.80 = 121,278.80 : x - Step 2: Convert to fraction form
136,053.20/204,079.80 = 121,278.80/x - Step 3: Cross multiply
136,053.20x = 204,079.80 × 121,278.80 - Step 4: Simplify right side
136,053.20x = 24,750,553,248.24 - Step 5: Solve for x
x = 24,750,553,248.24/136,053.20 - Step 6: Final answer
x = 181,918.20
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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.