Finding the Fourth Proportional to 148,724.39, 205,241.22 and 80,741.99
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Solution
The fourth proportional to 148,724.39, 205,241.22 and 80,741.99 is: 111,424.79
Step by Step Solution
- Step 1: Write the proportion equation
148,724.39 : 205,241.22 = 80,741.99 : x - Step 2: Convert to fraction form
148,724.39/205,241.22 = 80,741.99/x - Step 3: Cross multiply
148,724.39x = 205,241.22 × 80,741.99 - Step 4: Simplify right side
148,724.39x = 16,571,583,506.62 - Step 5: Solve for x
x = 16,571,583,506.62/148,724.39 - Step 6: Final answer
x = 111,424.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.