Finding the Fourth Proportional to 157,033.49, 216,794.97 and 120,170.43
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Solution
The fourth proportional to 157,033.49, 216,794.97 and 120,170.43 is: 165,903.12
Step by Step Solution
- Step 1: Write the proportion equation
157,033.49 : 216,794.97 = 120,170.43 : x - Step 2: Convert to fraction form
157,033.49/216,794.97 = 120,170.43/x - Step 3: Cross multiply
157,033.49x = 216,794.97 × 120,170.43 - Step 4: Simplify right side
157,033.49x = 26,052,344,766.74 - Step 5: Solve for x
x = 26,052,344,766.74/157,033.49 - Step 6: Final answer
x = 165,903.12
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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.