Finding the Fourth Proportional to 82,106.08, 113,263.36 and 71,326.75
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Solution
The fourth proportional to 82,106.08, 113,263.36 and 71,326.75 is: 98,393.54
Step by Step Solution
- Step 1: Write the proportion equation
82,106.08 : 113,263.36 = 71,326.75 : x - Step 2: Convert to fraction form
82,106.08/113,263.36 = 71,326.75/x - Step 3: Cross multiply
82,106.08x = 113,263.36 × 71,326.75 - Step 4: Simplify right side
82,106.08x = 8,078,707,788.74 - Step 5: Solve for x
x = 8,078,707,788.74/82,106.08 - Step 6: Final answer
x = 98,393.54
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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.