Finding the Fourth Proportional to 68,715.36, 103,602.81 and 68,288.88
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Solution
The fourth proportional to 68,715.36, 103,602.81 and 68,288.88 is: 102,959.80
Step by Step Solution
- Step 1: Write the proportion equation
68,715.36 : 103,602.81 = 68,288.88 : x - Step 2: Convert to fraction form
68,715.36/103,602.81 = 68,288.88/x - Step 3: Cross multiply
68,715.36x = 103,602.81 × 68,288.88 - Step 4: Simplify right side
68,715.36x = 7,074,919,859.75 - Step 5: Solve for x
x = 7,074,919,859.75/68,715.36 - Step 6: Final answer
x = 102,959.80
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.