Finding the Fourth Proportional to 120,988.08, 181,363.66 and 67,706.08
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Solution
The fourth proportional to 120,988.08, 181,363.66 and 67,706.08 is: 101,492.82
Step by Step Solution
- Step 1: Write the proportion equation
120,988.08 : 181,363.66 = 67,706.08 : x - Step 2: Convert to fraction form
120,988.08/181,363.66 = 67,706.08/x - Step 3: Cross multiply
120,988.08x = 181,363.66 × 67,706.08 - Step 4: Simplify right side
120,988.08x = 12,279,421,850.38 - Step 5: Solve for x
x = 12,279,421,850.38/120,988.08 - Step 6: Final answer
x = 101,492.82
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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.