Finding the Fourth Proportional to 125,245.74, 172,837.80 and 68,656.80
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Solution
The fourth proportional to 125,245.74, 172,837.80 and 68,656.80 is: 94,745.66
Step by Step Solution
- Step 1: Write the proportion equation
125,245.74 : 172,837.80 = 68,656.80 : x - Step 2: Convert to fraction form
125,245.74/172,837.80 = 68,656.80/x - Step 3: Cross multiply
125,245.74x = 172,837.80 × 68,656.80 - Step 4: Simplify right side
125,245.74x = 11,866,490,267.04 - Step 5: Solve for x
x = 11,866,490,267.04/125,245.74 - Step 6: Final answer
x = 94,745.66
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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.