Finding the Fourth Proportional to 107,616.40, 161,347.80 and 48,403.60
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Solution
The fourth proportional to 107,616.40, 161,347.80 and 48,403.60 is: 72,570.86
Step by Step Solution
- Step 1: Write the proportion equation
107,616.40 : 161,347.80 = 48,403.60 : x - Step 2: Convert to fraction form
107,616.40/161,347.80 = 48,403.60/x - Step 3: Cross multiply
107,616.40x = 161,347.80 × 48,403.60 - Step 4: Simplify right side
107,616.40x = 7,809,814,372.08 - Step 5: Solve for x
x = 7,809,814,372.08/107,616.40 - Step 6: Final answer
x = 72,570.86
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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.