Finding the Fourth Proportional to 161,767.55, 242,678.06 and 73,019.09
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Solution
The fourth proportional to 161,767.55, 242,678.06 and 73,019.09 is: 109,540.70
Step by Step Solution
- Step 1: Write the proportion equation
161,767.55 : 242,678.06 = 73,019.09 : x - Step 2: Convert to fraction form
161,767.55/242,678.06 = 73,019.09/x - Step 3: Cross multiply
161,767.55x = 242,678.06 × 73,019.09 - Step 4: Simplify right side
161,767.55x = 17,720,131,104.17 - Step 5: Solve for x
x = 17,720,131,104.17/161,767.55 - Step 6: Final answer
x = 109,540.70
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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.