Finding the Fourth Proportional to 159,888.35, 220,662.18 and 91,908.20
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Solution
The fourth proportional to 159,888.35, 220,662.18 and 91,908.20 is: 126,842.66
Step by Step Solution
- Step 1: Write the proportion equation
159,888.35 : 220,662.18 = 91,908.20 : x - Step 2: Convert to fraction form
159,888.35/220,662.18 = 91,908.20/x - Step 3: Cross multiply
159,888.35x = 220,662.18 × 91,908.20 - Step 4: Simplify right side
159,888.35x = 20,280,664,323.53 - Step 5: Solve for x
x = 20,280,664,323.53/159,888.35 - Step 6: Final answer
x = 126,842.66
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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.