Finding the Fourth Proportional to 117,881.48, 176,864.84 and 72,850.13
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Solution
The fourth proportional to 117,881.48, 176,864.84 and 72,850.13 is: 109,301.53
Step by Step Solution
- Step 1: Write the proportion equation
117,881.48 : 176,864.84 = 72,850.13 : x - Step 2: Convert to fraction form
117,881.48/176,864.84 = 72,850.13/x - Step 3: Cross multiply
117,881.48x = 176,864.84 × 72,850.13 - Step 4: Simplify right side
117,881.48x = 12,884,625,884.23 - Step 5: Solve for x
x = 12,884,625,884.23/117,881.48 - Step 6: Final answer
x = 109,301.53
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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.