Finding the Fourth Proportional to 158,371.38, 218,469.65 and 97,922.70
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Solution
The fourth proportional to 158,371.38, 218,469.65 and 97,922.70 is: 135,082.09
Step by Step Solution
- Step 1: Write the proportion equation
158,371.38 : 218,469.65 = 97,922.70 : x - Step 2: Convert to fraction form
158,371.38/218,469.65 = 97,922.70/x - Step 3: Cross multiply
158,371.38x = 218,469.65 × 97,922.70 - Step 4: Simplify right side
158,371.38x = 21,393,137,506.44 - Step 5: Solve for x
x = 21,393,137,506.44/158,371.38 - Step 6: Final answer
x = 135,082.09
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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.