Finding the Fourth Proportional to 128,797.14, 177,818.85 and 102,047.70
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Solution
The fourth proportional to 128,797.14, 177,818.85 and 102,047.70 is: 140,888.26
Step by Step Solution
- Step 1: Write the proportion equation
128,797.14 : 177,818.85 = 102,047.70 : x - Step 2: Convert to fraction form
128,797.14/177,818.85 = 102,047.70/x - Step 3: Cross multiply
128,797.14x = 177,818.85 × 102,047.70 - Step 4: Simplify right side
128,797.14x = 18,146,004,659.15 - Step 5: Solve for x
x = 18,146,004,659.15/128,797.14 - Step 6: Final answer
x = 140,888.26
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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.