Finding the Fourth Proportional to 107,781.84, 161,690.88 and 48,616.08
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Solution
The fourth proportional to 107,781.84, 161,690.88 and 48,616.08 is: 72,932.29
Step by Step Solution
- Step 1: Write the proportion equation
107,781.84 : 161,690.88 = 48,616.08 : x - Step 2: Convert to fraction form
107,781.84/161,690.88 = 48,616.08/x - Step 3: Cross multiply
107,781.84x = 161,690.88 × 48,616.08 - Step 4: Simplify right side
107,781.84x = 7,860,776,757.35 - Step 5: Solve for x
x = 7,860,776,757.35/107,781.84 - Step 6: Final answer
x = 72,932.29
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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.