Finding the Fourth Proportional to 149,375.48, 206,135.55 and 81,393.02
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Solution
The fourth proportional to 149,375.48, 206,135.55 and 81,393.02 is: 112,320.95
Step by Step Solution
- Step 1: Write the proportion equation
149,375.48 : 206,135.55 = 81,393.02 : x - Step 2: Convert to fraction form
149,375.48/206,135.55 = 81,393.02/x - Step 3: Cross multiply
149,375.48x = 206,135.55 × 81,393.02 - Step 4: Simplify right side
149,375.48x = 16,777,994,686.19 - Step 5: Solve for x
x = 16,777,994,686.19/149,375.48 - Step 6: Final answer
x = 112,320.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.