Finding the Fourth Proportional to 125,487.10, 173,175.21 and 68,128.84
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Solution
The fourth proportional to 125,487.10, 173,175.21 and 68,128.84 is: 94,019.43
Step by Step Solution
- Step 1: Write the proportion equation
125,487.10 : 173,175.21 = 68,128.84 : x - Step 2: Convert to fraction form
125,487.10/173,175.21 = 68,128.84/x - Step 3: Cross multiply
125,487.10x = 173,175.21 × 68,128.84 - Step 4: Simplify right side
125,487.10x = 11,798,225,849.35 - Step 5: Solve for x
x = 11,798,225,849.35/125,487.10 - Step 6: Final answer
x = 94,019.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.