Finding the Fourth Proportional to 172,565.83, 258,630.65 and 77,694.99
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Solution
The fourth proportional to 172,565.83, 258,630.65 and 77,694.99 is: 116,444.29
Step by Step Solution
- Step 1: Write the proportion equation
172,565.83 : 258,630.65 = 77,694.99 : x - Step 2: Convert to fraction form
172,565.83/258,630.65 = 77,694.99/x - Step 3: Cross multiply
172,565.83x = 258,630.65 × 77,694.99 - Step 4: Simplify right side
172,565.83x = 20,094,305,765.44 - Step 5: Solve for x
x = 20,094,305,765.44/172,565.83 - Step 6: Final answer
x = 116,444.29
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.