Finding the Fourth Proportional to 149,376.99, 206,137.59 and 81,394.44
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Solution
The fourth proportional to 149,376.99, 206,137.59 and 81,394.44 is: 112,322.88
Step by Step Solution
- Step 1: Write the proportion equation
149,376.99 : 206,137.59 = 81,394.44 : x - Step 2: Convert to fraction form
149,376.99/206,137.59 = 81,394.44/x - Step 3: Cross multiply
149,376.99x = 206,137.59 × 81,394.44 - Step 4: Simplify right side
149,376.99x = 16,778,453,701.00 - Step 5: Solve for x
x = 16,778,453,701.00/149,376.99 - Step 6: Final answer
x = 112,322.88
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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.