Finding the Fourth Proportional to 121,282.70, 170,145.70 and 121,282.70
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Solution
The fourth proportional to 121,282.70, 170,145.70 and 121,282.70 is: 170,145.70
Step by Step Solution
- Step 1: Write the proportion equation
121,282.70 : 170,145.70 = 121,282.70 : x - Step 2: Convert to fraction form
121,282.70/170,145.70 = 121,282.70/x - Step 3: Cross multiply
121,282.70x = 170,145.70 × 121,282.70 - Step 4: Simplify right side
121,282.70x = 20,635,729,889.39 - Step 5: Solve for x
x = 20,635,729,889.39/121,282.70 - Step 6: Final answer
x = 170,145.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.