Finding the Fourth Proportional to 128,412.49, 177,214.44 and 71,050.81
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Solution
The fourth proportional to 128,412.49, 177,214.44 and 71,050.81 is: 98,053.00
Step by Step Solution
- Step 1: Write the proportion equation
128,412.49 : 177,214.44 = 71,050.81 : x - Step 2: Convert to fraction form
128,412.49/177,214.44 = 71,050.81/x - Step 3: Cross multiply
128,412.49x = 177,214.44 × 71,050.81 - Step 4: Simplify right side
128,412.49x = 12,591,229,505.70 - Step 5: Solve for x
x = 12,591,229,505.70/128,412.49 - Step 6: Final answer
x = 98,053.00
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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.