Finding the Fourth Proportional to 92,433.12, 138,720.96 and 68,794.08
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Solution
The fourth proportional to 92,433.12, 138,720.96 and 68,794.08 is: 103,244.17
Step by Step Solution
- Step 1: Write the proportion equation
92,433.12 : 138,720.96 = 68,794.08 : x - Step 2: Convert to fraction form
92,433.12/138,720.96 = 68,794.08/x - Step 3: Cross multiply
92,433.12x = 138,720.96 × 68,794.08 - Step 4: Simplify right side
92,433.12x = 9,543,180,819.92 - Step 5: Solve for x
x = 9,543,180,819.92/92,433.12 - Step 6: Final answer
x = 103,244.17
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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.