Finding the Fourth Proportional to 112,754.26, 155,564.27 and 76,881.99
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Solution
The fourth proportional to 112,754.26, 155,564.27 and 76,881.99 is: 106,072.19
Step by Step Solution
- Step 1: Write the proportion equation
112,754.26 : 155,564.27 = 76,881.99 : x - Step 2: Convert to fraction form
112,754.26/155,564.27 = 76,881.99/x - Step 3: Cross multiply
112,754.26x = 155,564.27 × 76,881.99 - Step 4: Simplify right side
112,754.26x = 11,960,091,353.99 - Step 5: Solve for x
x = 11,960,091,353.99/112,754.26 - Step 6: Final answer
x = 106,072.19
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.