Finding the Fourth Proportional to 121,531.70, 182,297.55 and 38,425.70
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Solution
The fourth proportional to 121,531.70, 182,297.55 and 38,425.70 is: 57,638.55
Step by Step Solution
- Step 1: Write the proportion equation
121,531.70 : 182,297.55 = 38,425.70 : x - Step 2: Convert to fraction form
121,531.70/182,297.55 = 38,425.70/x - Step 3: Cross multiply
121,531.70x = 182,297.55 × 38,425.70 - Step 4: Simplify right side
121,531.70x = 7,004,910,967.04 - Step 5: Solve for x
x = 7,004,910,967.04/121,531.70 - Step 6: Final answer
x = 57,638.55
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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.