Finding the Fourth Proportional to 141,239.10, 194,897.55 and 83,874.09
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Solution
The fourth proportional to 141,239.10, 194,897.55 and 83,874.09 is: 115,738.88
Step by Step Solution
- Step 1: Write the proportion equation
141,239.10 : 194,897.55 = 83,874.09 : x - Step 2: Convert to fraction form
141,239.10/194,897.55 = 83,874.09/x - Step 3: Cross multiply
141,239.10x = 194,897.55 × 83,874.09 - Step 4: Simplify right side
141,239.10x = 16,346,854,649.48 - Step 5: Solve for x
x = 16,346,854,649.48/141,239.10 - Step 6: Final answer
x = 115,738.88
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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.