Finding the Fourth Proportional to 117,720.82, 175,472.25 and 108,272.98
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Solution
The fourth proportional to 117,720.82, 175,472.25 and 108,272.98 is: 161,389.49
Step by Step Solution
- Step 1: Write the proportion equation
117,720.82 : 175,472.25 = 108,272.98 : x - Step 2: Convert to fraction form
117,720.82/175,472.25 = 108,272.98/x - Step 3: Cross multiply
117,720.82x = 175,472.25 × 108,272.98 - Step 4: Simplify right side
117,720.82x = 18,998,901,996.08 - Step 5: Solve for x
x = 18,998,901,996.08/117,720.82 - Step 6: Final answer
x = 161,389.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.