Finding the Fourth Proportional to 107,674.80, 161,447.40 and 55,186.80
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Solution
The fourth proportional to 107,674.80, 161,447.40 and 55,186.80 is: 82,746.99
Step by Step Solution
- Step 1: Write the proportion equation
107,674.80 : 161,447.40 = 55,186.80 : x - Step 2: Convert to fraction form
107,674.80/161,447.40 = 55,186.80/x - Step 3: Cross multiply
107,674.80x = 161,447.40 × 55,186.80 - Step 4: Simplify right side
107,674.80x = 8,909,765,374.32 - Step 5: Solve for x
x = 8,909,765,374.32/107,674.80 - Step 6: Final answer
x = 82,746.99
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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.