Finding the Fourth Proportional to 157,067.30, 235,514.55 and 68,305.70
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Solution
The fourth proportional to 157,067.30, 235,514.55 and 68,305.70 is: 102,420.98
Step by Step Solution
- Step 1: Write the proportion equation
157,067.30 : 235,514.55 = 68,305.70 : x - Step 2: Convert to fraction form
157,067.30/235,514.55 = 68,305.70/x - Step 3: Cross multiply
157,067.30x = 235,514.55 × 68,305.70 - Step 4: Simplify right side
157,067.30x = 16,086,986,197.94 - Step 5: Solve for x
x = 16,086,986,197.94/157,067.30 - Step 6: Final answer
x = 102,420.98
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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.