Finding the Fourth Proportional to 125,728.62, 188,587.26 and 36,985.02
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Solution
The fourth proportional to 125,728.62, 188,587.26 and 36,985.02 is: 55,475.86
Step by Step Solution
- Step 1: Write the proportion equation
125,728.62 : 188,587.26 = 36,985.02 : x - Step 2: Convert to fraction form
125,728.62/188,587.26 = 36,985.02/x - Step 3: Cross multiply
125,728.62x = 188,587.26 × 36,985.02 - Step 4: Simplify right side
125,728.62x = 6,974,903,582.85 - Step 5: Solve for x
x = 6,974,903,582.85/125,728.62 - Step 6: Final answer
x = 55,475.86
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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.