Finding the Fourth Proportional to 170,616.10, 255,924.12 and 91,621.66
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Solution
The fourth proportional to 170,616.10, 255,924.12 and 91,621.66 is: 137,432.47
Step by Step Solution
- Step 1: Write the proportion equation
170,616.10 : 255,924.12 = 91,621.66 : x - Step 2: Convert to fraction form
170,616.10/255,924.12 = 91,621.66/x - Step 3: Cross multiply
170,616.10x = 255,924.12 × 91,621.66 - Step 4: Simplify right side
170,616.10x = 23,448,192,708.44 - Step 5: Solve for x
x = 23,448,192,708.44/170,616.10 - Step 6: Final answer
x = 137,432.47
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1.5x scale
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.