Finding the Fourth Proportional to 149,425.98, 206,201.84 and 81,441.50
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Solution
The fourth proportional to 149,425.98, 206,201.84 and 81,441.50 is: 112,385.99
Step by Step Solution
- Step 1: Write the proportion equation
149,425.98 : 206,201.84 = 81,441.50 : x - Step 2: Convert to fraction form
149,425.98/206,201.84 = 81,441.50/x - Step 3: Cross multiply
149,425.98x = 206,201.84 × 81,441.50 - Step 4: Simplify right side
149,425.98x = 16,793,387,152.36 - Step 5: Solve for x
x = 16,793,387,152.36/149,425.98 - Step 6: Final answer
x = 112,385.99
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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.