Finding the Fourth Proportional to 161,911.80, 242,810.10 and 73,207.80
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Solution
The fourth proportional to 161,911.80, 242,810.10 and 73,207.80 is: 109,785.66
Step by Step Solution
- Step 1: Write the proportion equation
161,911.80 : 242,810.10 = 73,207.80 : x - Step 2: Convert to fraction form
161,911.80/242,810.10 = 73,207.80/x - Step 3: Cross multiply
161,911.80x = 242,810.10 × 73,207.80 - Step 4: Simplify right side
161,911.80x = 17,775,593,238.78 - Step 5: Solve for x
x = 17,775,593,238.78/161,911.80 - Step 6: Final answer
x = 109,785.66
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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.