Finding the Fourth Proportional to 145,114.10, 217,551.18 and 55,138.19
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Solution
The fourth proportional to 145,114.10, 217,551.18 and 55,138.19 is: 82,661.70
Step by Step Solution
- Step 1: Write the proportion equation
145,114.10 : 217,551.18 = 55,138.19 : x - Step 2: Convert to fraction form
145,114.10/217,551.18 = 55,138.19/x - Step 3: Cross multiply
145,114.10x = 217,551.18 × 55,138.19 - Step 4: Simplify right side
145,114.10x = 11,995,377,416.58 - Step 5: Solve for x
x = 11,995,377,416.58/145,114.10 - Step 6: Final answer
x = 82,661.70
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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.