Finding the Fourth Proportional to 112,163.12, 154,784.96 and 61,862.08
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Solution
The fourth proportional to 112,163.12, 154,784.96 and 61,862.08 is: 85,369.59
Step by Step Solution
- Step 1: Write the proportion equation
112,163.12 : 154,784.96 = 61,862.08 : x - Step 2: Convert to fraction form
112,163.12/154,784.96 = 61,862.08/x - Step 3: Cross multiply
112,163.12x = 154,784.96 × 61,862.08 - Step 4: Simplify right side
112,163.12x = 9,575,319,578.32 - Step 5: Solve for x
x = 9,575,319,578.32/112,163.12 - Step 6: Final answer
x = 85,369.59
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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.