Finding the Fourth Proportional to 134,860.20, 202,290.30 and 84,996.60
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Solution
The fourth proportional to 134,860.20, 202,290.30 and 84,996.60 is: 127,494.90
Step by Step Solution
- Step 1: Write the proportion equation
134,860.20 : 202,290.30 = 84,996.60 : x - Step 2: Convert to fraction form
134,860.20/202,290.30 = 84,996.60/x - Step 3: Cross multiply
134,860.20x = 202,290.30 × 84,996.60 - Step 4: Simplify right side
134,860.20x = 17,193,987,712.98 - Step 5: Solve for x
x = 17,193,987,712.98/134,860.20 - Step 6: Final answer
x = 127,494.90
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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.