Finding the Fourth Proportional to 161,881.62, 242,764.11 and 68,394.66
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Solution
The fourth proportional to 161,881.62, 242,764.11 and 68,394.66 is: 102,567.35
Step by Step Solution
- Step 1: Write the proportion equation
161,881.62 : 242,764.11 = 68,394.66 : x - Step 2: Convert to fraction form
161,881.62/242,764.11 = 68,394.66/x - Step 3: Cross multiply
161,881.62x = 242,764.11 × 68,394.66 - Step 4: Simplify right side
161,881.62x = 16,603,768,763.65 - Step 5: Solve for x
x = 16,603,768,763.65/161,881.62 - Step 6: Final answer
x = 102,567.35
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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.