Finding the Fourth Proportional to 128,034.58, 176,556.63 and 84,998.92
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Solution
The fourth proportional to 128,034.58, 176,556.63 and 84,998.92 is: 117,211.48
Step by Step Solution
- Step 1: Write the proportion equation
128,034.58 : 176,556.63 = 84,998.92 : x - Step 2: Convert to fraction form
128,034.58/176,556.63 = 84,998.92/x - Step 3: Cross multiply
128,034.58x = 176,556.63 × 84,998.92 - Step 4: Simplify right side
128,034.58x = 15,007,122,868.84 - Step 5: Solve for x
x = 15,007,122,868.84/128,034.58 - Step 6: Final answer
x = 117,211.48
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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.