Finding the Fourth Proportional to 170,709.15, 255,919.13 and 70,806.99
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Solution
The fourth proportional to 170,709.15, 255,919.13 and 70,806.99 is: 106,150.51
Step by Step Solution
- Step 1: Write the proportion equation
170,709.15 : 255,919.13 = 70,806.99 : x - Step 2: Convert to fraction form
170,709.15/255,919.13 = 70,806.99/x - Step 3: Cross multiply
170,709.15x = 255,919.13 × 70,806.99 - Step 4: Simplify right side
170,709.15x = 18,120,862,924.68 - Step 5: Solve for x
x = 18,120,862,924.68/170,709.15 - Step 6: Final answer
x = 106,150.51
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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.