Finding the Fourth Proportional to 117,466.24, 162,103.35 and 66,478.05
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Solution
The fourth proportional to 117,466.24, 162,103.35 and 66,478.05 is: 91,739.67
Step by Step Solution
- Step 1: Write the proportion equation
117,466.24 : 162,103.35 = 66,478.05 : x - Step 2: Convert to fraction form
117,466.24/162,103.35 = 66,478.05/x - Step 3: Cross multiply
117,466.24x = 162,103.35 × 66,478.05 - Step 4: Simplify right side
117,466.24x = 10,776,313,629.76 - Step 5: Solve for x
x = 10,776,313,629.76/117,466.24 - Step 6: Final answer
x = 91,739.67
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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.