Finding the Fourth Proportional to 136,953.84, 205,452.81 and 42,183.99
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Solution
The fourth proportional to 136,953.84, 205,452.81 and 42,183.99 is: 63,282.78
Step by Step Solution
- Step 1: Write the proportion equation
136,953.84 : 205,452.81 = 42,183.99 : x - Step 2: Convert to fraction form
136,953.84/205,452.81 = 42,183.99/x - Step 3: Cross multiply
136,953.84x = 205,452.81 × 42,183.99 - Step 4: Simplify right side
136,953.84x = 8,666,819,282.51 - Step 5: Solve for x
x = 8,666,819,282.51/136,953.84 - Step 6: Final answer
x = 63,282.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.