Finding the Fourth Proportional to 128,523.60, 177,122.16 and 92,652.48
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Solution
The fourth proportional to 128,523.60, 177,122.16 and 92,652.48 is: 127,687.11
Step by Step Solution
- Step 1: Write the proportion equation
128,523.60 : 177,122.16 = 92,652.48 : x - Step 2: Convert to fraction form
128,523.60/177,122.16 = 92,652.48/x - Step 3: Cross multiply
128,523.60x = 177,122.16 × 92,652.48 - Step 4: Simplify right side
128,523.60x = 16,410,807,386.96 - Step 5: Solve for x
x = 16,410,807,386.96/128,523.60 - Step 6: Final answer
x = 127,687.11
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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.