Finding the Fourth Proportional to 120,366.50, 166,106.57 and 66,654.99
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Solution
The fourth proportional to 120,366.50, 166,106.57 and 66,654.99 is: 91,984.33
Step by Step Solution
- Step 1: Write the proportion equation
120,366.50 : 166,106.57 = 66,654.99 : x - Step 2: Convert to fraction form
120,366.50/166,106.57 = 66,654.99/x - Step 3: Cross multiply
120,366.50x = 166,106.57 × 66,654.99 - Step 4: Simplify right side
120,366.50x = 11,071,831,429.01 - Step 5: Solve for x
x = 11,071,831,429.01/120,366.50 - Step 6: Final answer
x = 91,984.33
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1.5x scale
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.