Finding the Fourth Proportional to 120,812.53, 166,723.35 and 66,366.99
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Solution
The fourth proportional to 120,812.53, 166,723.35 and 66,366.99 is: 91,587.58
Step by Step Solution
- Step 1: Write the proportion equation
120,812.53 : 166,723.35 = 66,366.99 : x - Step 2: Convert to fraction form
120,812.53/166,723.35 = 66,366.99/x - Step 3: Cross multiply
120,812.53x = 166,723.35 × 66,366.99 - Step 4: Simplify right side
120,812.53x = 11,064,926,902.22 - Step 5: Solve for x
x = 11,064,926,902.22/120,812.53 - Step 6: Final answer
x = 91,587.58
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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.