Finding the Fourth Proportional to 78,786.08, 118,153.44 and 26,181.44
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Solution
The fourth proportional to 78,786.08, 118,153.44 and 26,181.44 is: 39,263.63
Step by Step Solution
- Step 1: Write the proportion equation
78,786.08 : 118,153.44 = 26,181.44 : x - Step 2: Convert to fraction form
78,786.08/118,153.44 = 26,181.44/x - Step 3: Cross multiply
78,786.08x = 118,153.44 × 26,181.44 - Step 4: Simplify right side
78,786.08x = 3,093,427,200.15 - Step 5: Solve for x
x = 3,093,427,200.15/78,786.08 - Step 6: Final answer
x = 39,263.63
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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.