Finding the Fourth Proportional to 103,639.96, 155,459.94 and 29,767.96
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Solution
The fourth proportional to 103,639.96, 155,459.94 and 29,767.96 is: 44,651.94
Step by Step Solution
- Step 1: Write the proportion equation
103,639.96 : 155,459.94 = 29,767.96 : x - Step 2: Convert to fraction form
103,639.96/155,459.94 = 29,767.96/x - Step 3: Cross multiply
103,639.96x = 155,459.94 × 29,767.96 - Step 4: Simplify right side
103,639.96x = 4,627,725,275.52 - Step 5: Solve for x
x = 4,627,725,275.52/103,639.96 - Step 6: Final answer
x = 44,651.94
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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.