Finding the Fourth Proportional to 149,349.42, 206,101.58 and 81,366.18
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Solution
The fourth proportional to 149,349.42, 206,101.58 and 81,366.18 is: 112,284.99
Step by Step Solution
- Step 1: Write the proportion equation
149,349.42 : 206,101.58 = 81,366.18 : x - Step 2: Convert to fraction form
149,349.42/206,101.58 = 81,366.18/x - Step 3: Cross multiply
149,349.42x = 206,101.58 × 81,366.18 - Step 4: Simplify right side
149,349.42x = 16,769,699,080.30 - Step 5: Solve for x
x = 16,769,699,080.30/149,349.42 - Step 6: Final answer
x = 112,284.99
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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.