Finding the Fourth Proportional to 102,587.61, 141,634.91 and 66,308.05
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Solution
The fourth proportional to 102,587.61, 141,634.91 and 66,308.05 is: 91,546.48
Step by Step Solution
- Step 1: Write the proportion equation
102,587.61 : 141,634.91 = 66,308.05 : x - Step 2: Convert to fraction form
102,587.61/141,634.91 = 66,308.05/x - Step 3: Cross multiply
102,587.61x = 141,634.91 × 66,308.05 - Step 4: Simplify right side
102,587.61x = 9,391,534,694.03 - Step 5: Solve for x
x = 9,391,534,694.03/102,587.61 - Step 6: Final answer
x = 91,546.48
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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.