Finding the Fourth Proportional to 128,268.26, 176,895.60 and 80,526.06
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Solution
The fourth proportional to 128,268.26, 176,895.60 and 80,526.06 is: 111,054.02
Step by Step Solution
- Step 1: Write the proportion equation
128,268.26 : 176,895.60 = 80,526.06 : x - Step 2: Convert to fraction form
128,268.26/176,895.60 = 80,526.06/x - Step 3: Cross multiply
128,268.26x = 176,895.60 × 80,526.06 - Step 4: Simplify right side
128,268.26x = 14,244,705,699.34 - Step 5: Solve for x
x = 14,244,705,699.34/128,268.26 - Step 6: Final answer
x = 111,054.02
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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.