Finding the Fourth Proportional to 134,789.80, 202,403.40 and 75,740.80
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Solution
The fourth proportional to 134,789.80, 202,403.40 and 75,740.80 is: 113,734.09
Step by Step Solution
- Step 1: Write the proportion equation
134,789.80 : 202,403.40 = 75,740.80 : x - Step 2: Convert to fraction form
134,789.80/202,403.40 = 75,740.80/x - Step 3: Cross multiply
134,789.80x = 202,403.40 × 75,740.80 - Step 4: Simplify right side
134,789.80x = 15,330,195,438.72 - Step 5: Solve for x
x = 15,330,195,438.72/134,789.80 - Step 6: Final answer
x = 113,734.09
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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.