Finding the Fourth Proportional to 131,665.36, 197,449.08 and 47,402.68
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Solution
The fourth proportional to 131,665.36, 197,449.08 and 47,402.68 is: 71,086.39
Step by Step Solution
- Step 1: Write the proportion equation
131,665.36 : 197,449.08 = 47,402.68 : x - Step 2: Convert to fraction form
131,665.36/197,449.08 = 47,402.68/x - Step 3: Cross multiply
131,665.36x = 197,449.08 × 47,402.68 - Step 4: Simplify right side
131,665.36x = 9,359,615,555.53 - Step 5: Solve for x
x = 9,359,615,555.53/131,665.36 - Step 6: Final answer
x = 71,086.39
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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.