Finding the Fourth Proportional to 134,495.40, 201,743.10 and 87,493.80
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Solution
The fourth proportional to 134,495.40, 201,743.10 and 87,493.80 is: 131,240.70
Step by Step Solution
- Step 1: Write the proportion equation
134,495.40 : 201,743.10 = 87,493.80 : x - Step 2: Convert to fraction form
134,495.40/201,743.10 = 87,493.80/x - Step 3: Cross multiply
134,495.40x = 201,743.10 × 87,493.80 - Step 4: Simplify right side
134,495.40x = 17,651,270,442.78 - Step 5: Solve for x
x = 17,651,270,442.78/134,495.40 - Step 6: Final answer
x = 131,240.70
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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.