Finding the Fourth Proportional to 107,283.80, 160,863.40 and 71,785.76
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Solution
The fourth proportional to 107,283.80, 160,863.40 and 71,785.76 is: 107,636.95
Step by Step Solution
- Step 1: Write the proportion equation
107,283.80 : 160,863.40 = 71,785.76 : x - Step 2: Convert to fraction form
107,283.80/160,863.40 = 71,785.76/x - Step 3: Cross multiply
107,283.80x = 160,863.40 × 71,785.76 - Step 4: Simplify right side
107,283.80x = 11,547,701,425.18 - Step 5: Solve for x
x = 11,547,701,425.18/107,283.80 - Step 6: Final answer
x = 107,636.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.