Finding the Fourth Proportional to 125,312.08, 187,975.68 and 50,431.90
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Solution
The fourth proportional to 125,312.08, 187,975.68 and 50,431.90 is: 75,650.89
Step by Step Solution
- Step 1: Write the proportion equation
125,312.08 : 187,975.68 = 50,431.90 : x - Step 2: Convert to fraction form
125,312.08/187,975.68 = 50,431.90/x - Step 3: Cross multiply
125,312.08x = 187,975.68 × 50,431.90 - Step 4: Simplify right side
125,312.08x = 9,479,970,696.19 - Step 5: Solve for x
x = 9,479,970,696.19/125,312.08 - Step 6: Final answer
x = 75,650.89
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1.5x scale
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.