Finding the Fourth Proportional to 125,448.48, 188,074.08 and 85,885.68
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Solution
The fourth proportional to 125,448.48, 188,074.08 and 85,885.68 is: 128,760.99
Step by Step Solution
- Step 1: Write the proportion equation
125,448.48 : 188,074.08 = 85,885.68 : x - Step 2: Convert to fraction form
125,448.48/188,074.08 = 85,885.68/x - Step 3: Cross multiply
125,448.48x = 188,074.08 × 85,885.68 - Step 4: Simplify right side
125,448.48x = 16,152,870,251.17 - Step 5: Solve for x
x = 16,152,870,251.17/125,448.48 - Step 6: Final answer
x = 128,760.99
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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.