Finding the Fourth Proportional to 107,778.08, 161,685.12 and 48,612.44
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Solution
The fourth proportional to 107,778.08, 161,685.12 and 48,612.44 is: 72,926.78
Step by Step Solution
- Step 1: Write the proportion equation
107,778.08 : 161,685.12 = 48,612.44 : x - Step 2: Convert to fraction form
107,778.08/161,685.12 = 48,612.44/x - Step 3: Cross multiply
107,778.08x = 161,685.12 × 48,612.44 - Step 4: Simplify right side
107,778.08x = 7,859,908,194.89 - Step 5: Solve for x
x = 7,859,908,194.89/107,778.08 - Step 6: Final answer
x = 72,926.78
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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.