Finding the Fourth Proportional to 128,624.00, 177,469.05 and 74,192.81
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Solution
The fourth proportional to 128,624.00, 177,469.05 and 74,192.81 is: 102,367.58
Step by Step Solution
- Step 1: Write the proportion equation
128,624.00 : 177,469.05 = 74,192.81 : x - Step 2: Convert to fraction form
128,624.00/177,469.05 = 74,192.81/x - Step 3: Cross multiply
128,624.00x = 177,469.05 × 74,192.81 - Step 4: Simplify right side
128,624.00x = 13,166,926,620.19 - Step 5: Solve for x
x = 13,166,926,620.19/128,624.00 - Step 6: Final answer
x = 102,367.58
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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.