Finding the Fourth Proportional to 123,307.14, 170,163.84 and 66,718.50
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Solution
The fourth proportional to 123,307.14, 170,163.84 and 66,718.50 is: 92,071.52
Step by Step Solution
- Step 1: Write the proportion equation
123,307.14 : 170,163.84 = 66,718.50 : x - Step 2: Convert to fraction form
123,307.14/170,163.84 = 66,718.50/x - Step 3: Cross multiply
123,307.14x = 170,163.84 × 66,718.50 - Step 4: Simplify right side
123,307.14x = 11,353,076,159.04 - Step 5: Solve for x
x = 11,353,076,159.04/123,307.14 - Step 6: Final answer
x = 92,071.52
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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.