Finding the Fourth Proportional to 112,012.08, 154,576.71 and 61,711.08
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Solution
The fourth proportional to 112,012.08, 154,576.71 and 61,711.08 is: 85,161.31
Step by Step Solution
- Step 1: Write the proportion equation
112,012.08 : 154,576.71 = 61,711.08 : x - Step 2: Convert to fraction form
112,012.08/154,576.71 = 61,711.08/x - Step 3: Cross multiply
112,012.08x = 154,576.71 × 61,711.08 - Step 4: Simplify right side
112,012.08x = 9,539,095,716.95 - Step 5: Solve for x
x = 9,539,095,716.95/112,012.08 - Step 6: Final answer
x = 85,161.31
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1.5x scale
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.